Alicia Is Making A Patchwork Quilt. The Pattern Is A Tessellationmade Up Of Fabric Pieces Shaped Like (2024)

Mathematics High School

Alicia Is Making A Patchwork Quilt. The Pattern Is A Tessellationmade Up Of Fabric Pieces Shaped Like (1)

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Answer 1

Finally, Alicia could finish the edges of the quilt by sewing on binding or hemming the edges to create a polished look.

What is Trapezoid ?

A trapezoid is a quadrilateral with at least one pair of parallel sides. The parallel sides are called the bases, and the non-parallel sides are called the legs. The height of a trapezoid is the perpendicular distance between the two bases.

it seems like Alicia has started to create a patchwork quilt using triangular and trapezoidal pieces of fabric arranged in a tessellation pattern.

To continue making the quilt, Alicia could continue adding more triangular and trapezoidal pieces of fabric in a similar tessellation pattern until the entire quilt is filled. She could experiment with different colors and patterns of fabric to create a unique and interesting design.

Once Alicia has arranged all the pieces of fabric, she could sew them together using a sewing machine or by hand to create a finished patchwork quilt. She may need to trim the edges of the quilt to ensure that they are straight and even, and then she could add a backing fabric and batting to create a comfortable and warm quilt.

Therefore, Finally, Alicia could finish the edges of the quilt by sewing on binding or hemming the edges to create a polished look.

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Related Questions

Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula (a) 2 sin 14° cos 14° 1x Remember to use a degree symbol. (b) 2 sin 30 cos 36 Simplify the expression by using a Double-Angle Formula 2 tan 7o 1 -tan 7 Remember to use a degree symbol (b) 2 tan 7e 1-tan2 7θ

Answers

(a)2 sin 14° cos 14° = sin 28°

(b)2 sin 30° cos 36° = sin 72°

(c)2 tan 7° 1 - tan 7° = 2tan 14°

(d)2 tan 7° 1-tan2 7° = 2tan 14°

Trigonometric ratios of double angles (2θ) are expressed in terms of trigonometric ratios of single angles (θ) using double angle formulae. The Pythagorean identities are used to create certain alternative formulas, while the double angle formulas are special cases of (and are thus derived from) the sum formulas of trigonometry.

(a) Using the Double Angle Formula for sin 2θ:

2 sin 14° cos 14° = sin 28°

(b) Using the Double Angle Formula for cos 2θ:

2 sin 30° cos 36° = sin 72°

(c) Using the Double Angle Formula for tan 2θ:

2 tan 7° 1 - tan 7° = 2tan 14°

(d) Using the Double Angle Formula for tan 2θ:

2 tan 7° 1-tan2 7° = 2tan 14°

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Please show how you got your answer

Answers

Answer:

x=20

Step-by-step explanation: your welcome

2 x + 140 = 180

-140 l -140

2 x l 40

2x l 2x

x = 20

determine the stability of the system, whose characteristic equation is D(s) = s^6+ 3s^5 + 2s^4 + 9s^3 + 5s^2 + 12s+ 20.

Answers

The system is stable.

To determine the stability of the system, we need to look at the roots of the characteristic equation D(s). If all the roots have negative real parts, then the system is stable. If any root has a positive real part, then the system is unstable.

To find the roots of D(s), we can use the Routh-Hurwitz criterion. The Routh-Hurwitz table for this equation is:

1 2 12
3 9 20
-5 -20
-16

Since there are no sign changes in the first column of the table, all the roots of D(s) have negative real parts. Therefore, the system is stable.

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According to the Federal Highway Administration 2003 highway statistics, the distribution of ages for licensed drivers has a mean of 44.5 years and a standard deviation of 17.1 years. Assuming the distribution of ages is normally distributed what percentage of the drivers are between the ages 17 and 56?

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Assuming the distribution of ages is normally distributed, the percentage of the drivers that are between the ages 17 and 56 is 69.49%.

According to the Federal Highway Administration 2003 highway statistics, the distribution of ages for licensed drivers has a mean of 44.5 years and a standard deviation of 17.1 years.

To find the percentage of drivers between the ages of 17 and 56, we'll use the normal distribution properties.

Here are the steps:

1. Calculate the z-scores for both ages:
z₁ = (17 - 44.5) / 17.1 = -1.61
z₂ = (56 - 44.5) / 17.1 = 0.67

2. Use a standard normal distribution table (z-table) to find the area under the curve between z₁ and z₂:
P(z₁) = 0.0537
P(z₂) = 0.7486

3. Subtract the probabilities to find the percentage of drivers between 17 and 56 years old:
P(17 ≤ age ≤ 56) = P(z₂) - P(z₁)

= 0.7486 - 0.0537 = 0.6949

So, approximately 69.49% of the drivers are between the ages of 17 and 56.

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Reliable ______ are what make your research paper solid and strong. Make sure to find the best sources for your project.

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Reliable sources are what make your research paper solid and strong.

Reliable sources are crucial in ensuring that your research paper is solid and strong. It is important to conduct thorough research and choose only the most credible sources to support your arguments and ideas. By utilizing high-quality sources, you can add depth and validity to your work, ultimately leading to a more impactful and successful paper.
A reliable source is America's Sunday morning talk show on CNN from 1992 to 2022, focusing on analysis and commentary on American media. It airs at CNN's WarnerMedia Studios in New York City from 11:00 AM to 12:00 PM ET. He also broadcasts internationally on CNN International.

This program was originally designed to analyze media coverage of the Persian Gulf War, but has since focused on media coverage of the Valerie Prime incident, the Iraq war, Mark Felt's trip as the Deep Throat, and many other things and internal information. On August 18, 2022, CNN canceled the show and host Brian Settler announced he was leaving the network. The final episode will air on August 21, 2022.

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(1 point) determine the sum of the series ∑n=1[infinity]6n(n + 2) if possible. (if the series diverges, enter 'infinity', '-infinity' or 'dne' as appropriate.)

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The sum of the series ∑n=1[infinity]6n(n + 2) is ∞.

To find the sum of the series ∑n=1[infinity]6n(n + 2), we can use the formula for the sum of a series of the form ∑n=1[infinity]an = ∞∑n=1(an − an−1), where a0 = 0.

First, we need to find an expression for the nth term of the series, an. Using the formula for the product of two consecutives integers, we can write:

an = 6n(n + 2) = 6n^2 + 12n

Next, we can compute the difference between consecutive terms:

an - an-1 = [6n^2 + 12n] - [6(n-1)^2 + 12(n-1)]

= 6n^2 + 12n - 6(n^2 - 2n + 1) - 12(n - 1)

= 6n^2 + 12n - 6n^2 + 12n - 6 - 12n + 12

= 6

Therefore, we have:

∑n=1[infinity]6n(n + 2) = ∞∑n=1(6) = ∞

The series diverges to infinity.

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using the same method for identifying outliers, which of the three values are identified as outliers for the age-group 40 years to 50 years?

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There are no values less than 30 or greater than 70 in the dataset, there are no outliers for the age-group 40 years to 50 years using this method.

To identify outliers for the age-group 40 years to 50 years, we need to use a statistical method called the interquartile range (IQR). The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). Any data point that is more than 1.5 times the IQR below Q1 or above Q3 is considered an outlier.
Assuming we have a dataset for the age-group 40 years to 50 years, we first need to find Q1, Q3, and the IQR. Let's say the dataset is {42, 44, 45, 47, 48, 50, 52, 55, 58, 60}. To find Q1, we need to find the median of the lower half of the dataset. In this case, the lower half is {42, 44, 45, 47, 48}. The median of this set is 45. To find Q3, we need to find the median of the upper half of the dataset. In this case, the upper half is {50, 52, 55, 58, 60}. The median of this set is 55. Therefore, Q1 = 45 and Q3 = 55. The IQR is Q3 - Q1 = 55 - 45 = 10.
Now, we can identify outliers. Any data point that is more than 1.5 times the IQR below Q1 or above Q3 is considered an outlier. In this case, any value less than 30 or greater than 70 would be considered an outlier. Since there are no values less than 30 or greater than 70 in the dataset, there are no outliers for the age-group 40 years to 50 years using this method.

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There are 5 people, L, M, N, O and P. M is taller than only P and O is taller than P and M both. O is smaller than Land N both but not M. N is not the tallest one. O is taller than how many people?​

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According to the unitary method, O is taller than two people and shorter than three people in the group.

According to the given information, M is taller than only one person, P.

This means that M is the second shortest person in the group, and P is the shortest. O, on the other hand, is taller than both P and M, making O the third tallest person in the group.

Therefore, we can conclude that L, N, and O are taller than M and P.

Furthermore, O is smaller than L and N, but not smaller than M. This tells us that O is the third tallest person in the group, with only L and N being taller.

Thus, we can deduce that O is taller than only two people, M and P, and shorter than three people, L, N, and O.

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A political consultant wants to sample residents of a county to estimate what proportion of all the county's residents support a certain candidate.
They will use the sample data to construct a one-sample z interval for the proportion, and they are considering two sample sizes: a large sample of
n = 900 for more accurate results. or a small sample of n = 100 to save
time and money.
Assuming the sample proportion is the same in each sample, what is true about the margins of error from these two samples?
The margin of error from the smaller sample will be about select ratio
v
the margin of error from the larger sample.

Answers

The margin of error from the smaller sample will be about 3 times the margin of error from the larger sample.

How to find margin of error?

The margin of error in a one-sample z interval for a proportion depends on three factors: the sample size (n), the sample proportion, and the level of confidence [tex](z\alpha/2)[/tex]. The formula for the margin of error is:

Assuming the sample proportion is the same in each sample, the only difference between the margins of error will be due to the difference in sample sizes.

The margin of error is inversely proportional to the square root of the sample size, meaning that as the sample size increases, the margin of error decreases. Therefore, if the larger sample size is n = 900 and the smaller sample size is n = 100, the margin of error from the smaller sample will be about √9 times larger than the margin of error from the larger sample, or approximately 3 times larger. In other words, the margin of error from the smaller sample will be about 3 times the margin of error from the larger sample.

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5. The perimeter of the parallelogram is 25 feet.
Find y.

4y and find the missing y

Pretend theres a box a 4y is on top and y is on the side now we have to missing y on the side pls hurry i need This ASAP

Answers

The value of the missing figure of the sides of the parallelogram would be = 4.2

What is parallelogram?

Parallelogram is defined as the quadrilateral that has opposite sides equal in length, and the opposite angles are equal in measure.

The formula for perimeter = 2(a+b)

The perimeter = 25

a = y

b = 4y

The value of y;

25 = 2(y+2y)

25 = 2y + 4y

25 = 6y

y = 25/6

y = 4.2

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Need help with this, include the work too.

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The conversion of radians to degree and vice versa is 1. -13π /12 = -195° 2. 480° = 8π/3. 3. 510 = 5π/6. 4. 330 = -π/3 5. - π/4 = -45 6. - 7π/3 = 420°.

What is a unit circle?

A circle with radius 1 that is located at the origin of a coordinate plane is known as the unit circle. Trigonometric functions and their connections to angles in both degrees and radians are shown by circles.

By placing the angle on the unit circle in standard position (with its vertex at the origin), we can use it to convert between degrees and radians by measuring the length of the arc on the circle that corresponds to the angle. After that, this length is represented as a multiple of either to convert from degrees to radians or to convert from radians to degrees.

1. Convert -13π /12 from radians to degrees, we multiply by 180/π:

-13π /12 * 180/π = -195°

2. To convert 480° from degrees to radians, we multiply by π/180:

480° * π/180 = 8π/3

3. To convert 510° from degrees to radians, multiply by π/180:

Subtract 360° to get an equivalent angle between 0 and 360°

(510° - 360°) * π/180 = 5π/6

4. To convert 330° from degrees to radians:

Subtract 360° to get an equivalent angle between 0 and 360°.

(330° - 360°) * π/180 = -π/3

5. Convert - π/4 from radians to degrees, we multiply by 180/π:

π/4 * 180/π = -45°

6. Convert - 7π/3 from radians to degrees, we multiply by 180/π:

-7π /3 * 180/π = -420°

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Carrie earned $231 each month, every, month in 2009. How many Social Security credits did she earn in 2009?

Answers

Carrie earned 2 Social Security credits in 2009.

What is simple interest?

Most of the time, we don't demand a fee when lending money to individuals we know, but in the actual world, neither borrowing nor lending money happens for free. For lending us money, banks and other financial organisations charge a fee. On the other hand, if we lend them money and put it in a bank account, they pay us a charge. Simple interest is the name for this cost.

To determine the number of Social Security credits earned in a year, we need to know the total amount of earnings in that year.

Since Carrie earned $231 each month in 2009, her total earnings for the year would be:

Total earnings = Monthly earnings x 12 months

Total earnings = $231 x 12

Total earnings = $2,772

To earn one Social Security credit in 2009, an individual needed to earn $1,090 in covered earnings. Therefore, to determine the number of Social Security credits earned by Carrie in 2009, we can divide her total earnings by the amount needed to earn one credit:

Number of credits earned = Total earnings / Earnings needed per credit

Number of credits earned = $2,772 / $1,090

Number of credits earned ≈ 2.54

Since we cannot earn a fraction of a credit, we can round this number down to 2. Therefore, Carrie earned 2 Social Security credits in 2009.

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find the limit. lim t→[infinity] arctan(8t), e−7t, ln(t) t

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The lim t→[infinity] arctan(8t) is equal to π/2 , lim t→[infinity] e - 7t is equal to negative infinity (that is, -∞) and lim t→[infinity] In(t) t is equal to infinity (that is, ∞).

For finding limit of [tex]\lim_{t \to \infty} arctan(8t)[/tex]

Let x=8t

We know as x tends to π/2 , then tan(x) tends to infinity.

Arctan(x) is inverse function of tan(x) function.

Therefore, as x tends to infinity, arctan(x) tends to π/2

That is,

[tex]\lim_{x \to \infty} arctan(x)[/tex] = π/2

Thus, [tex]\lim_{t \to \infty} arctan(8t)[/tex] = π/2

Since, [tex]{x \to \infty}[/tex] ⇒ [tex]{x/8 \to \infty}[/tex] ⇒[tex]{t \to \infty}[/tex] ⇒[tex]{8t \to \infty}[/tex]

For finding limit of [tex]\lim_{t \to \infty} e -7t[/tex]

As t tends to infinity, -7t tends to negative infinity.

Thus, e -7t tends to negative infinity as t tends to infinity.

That is, [tex]\lim_{t \to \infty} e -7t[/tex] = -∞

For finding limit of [tex]\lim_{t \to \infty} In(t) t[/tex]

As t tends to infinity, In(t) tends to infinity.

Thus, [tex]\lim_{t \to \infty} In(t) t[/tex] = ∞

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In each of Problems 1 through 3, write the given expression as a product of two trigonometric functions of different frequencies sin(3t) +sin(4t)

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sin(3t) + sin(4t) = 2sin(7t/2)cos(-t/2) is a product of two trigonometric functions of different frequencies.

To write sin(3t) + sin(4t) as a product of two trigonometric functions of different frequencies,

we can use the product-to-sum identity:
sin(a) + sin(b) = 2sin((a+b)/2)cos((a-b)/2)

Applying this identity to sin(3t) + sin(4t), we get:
sin(3t) + sin(4t) = 2sin((3t+4t)/2)cos((3t-4t)/2) = 2sin(7t/2)cos(-t/2)

So, sin(3t) + sin(4t) can be written as a product of two trigonometric functions of different frequencies:
sin(3t) + sin(4t) = 2sin(7t/2)cos(-t/2)

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Jennifer is a car saleswoman. She is paid a salary of $2000 per month plus $300 for each car that she sells. Her monthly salary can be modeled by the equation f(x)= 300x+2000 where x is the number of cars sold Which of the following is a graph that represents this equation?

Answers

The function represent graph is option G.

What is function?

A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

Here the given function is ,

f(x) = 300x+2000

Where x = number of cars sold.

Now put x= 1 then,

f(x) = 300*1+2000 = $2300

Now put x = 2 then,

f(x) = 600+2000 = $2600

Hence the function represent graph is option G.

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which statement about sample size in qualitative research is true? sampling for qualitative studies should stop before information becomes redundant new researchers who have a fresh eye on phenomena can rely on smaller samples than more experienced researchers if the quality of data being collected is exceptionally good, a smaller sample may suffice than when data are of mediocre quality typical case sampling requires more participants than maximum variation sampling

Answers

In contrast to quantitative research, sampling may not always produce the same results in qualitative data analysis. The analysis will depend on the more complicated themes.

The researcher must seek for saturation in order to set a sample size restriction. The ideal in qualitative research is saturation. It serves as a tool to make sure sufficient, high-quality data are gathered to support the investigation.

Quantitative research is a method of gathering and analyzing data that uses numerical and statistical techniques. It is a systematic and objective approach that involves the collection of numerical data through surveys, experiments, or other forms of measurement, which is then analyzed using statistical tools. The goal of quantitative research is to generate and test theories, hypotheses, and models that can be generalized to a larger population.

Quantitative research often involves the use of large samples, which allow researchers to draw statistically significant conclusions about the population being studied. It also involves the use of standardized measures and data collection methods to ensure that the data collected is reliable and valid. Quantitative research is widely used in fields such as social sciences, education, psychology, and market research to study a variety of phenomena, including attitudes, behaviors, opinions, and trends.

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Complete Question:-

Which statement about sample size in qualitative research is true?

A. Sampling for qualitative studies should stop before information becomes redundant.

B. If the quality of data being collected is exceptionally good, a smaller sample may suffice than when data are of mediocre quality.

C. New researchers who have a fresh eye on phenomena can rely on smaller samples than more experienced researchers.

D. Typical case sampling requires more participants than maximum variation sampling.

True or false? If a chi-square test results in a significant P-value, there is exactly one significant difference between the parameters for the categories.

Answers

False. A significant P-value from a chi-square test indicates that there is a statistically significant difference between the observed and expected values.

However, it does not indicate the number of significant differences or which specific categories are contributing to the overall difference.

For example, if a chi-square test is used to compare the distribution of hair color in two populations and the P-value is significant, it means that there is a difference in hair color distribution between the two populations. However, it does not tell us which hair colors are different or how many differences there are.

To determine the specific differences between categories, posthoc tests or further analysis may be needed. Therefore, it is incorrect to assume that a significant P-value from a chi-square test implies only one significant difference between the parameters for the categories.

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Suppose a researcher asks 110 Penn State Students (61 females and 49 males) for the cost of their most recent cell phone bill. The research indicates that on average males spend 12.87 dollars more per month than females. Using 5,000 bootstrap samples, a 99% confidence interval for the population difference in means is calculated to be 9.21 to 16.40 dollars. Indicate what would happen to the width of the confidence interval if the changes below were made. For each option, assume all other quantities are held constant. The sample size is changed from 110 to 50 (30 females, 20 males) The number of bootstrap samples used is changed from 5,000 to 9,000 [ Choose Impossible to say with information available Width would increase Width would stay about the same Width would decrease The confidence level is changed from 99% to 95% Choose The sample difference in means is changed from 12.87 to 13.09

Answers

Width of the confidence interval if the changes below were made:

The sample size is changed from 110 to 50 (30 females, 20 males) - width would increase.The number of bootstrap samples used is changed from 5,000 to 9,000 - width would decrease.The confidence level is changed from 99% to 95% - width would decrease.The sample difference in means is changed from 12.87 to 13.09 - width would say about the same.

If the number of sample decreases, standard error increases, margin of error increases, so width would increase, If the number of sample increases, standard error decreases, margin of error decreases, so width would decrease, if the level of confidence is decreased, then z or t value decreases, the width would decrease

The sample difference in means does not affect the width of confidence interval, so width would say about the same.

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Complete parta (a) through (o) for the following function. f(x)=x^4−30x^2+189 (a) Find intervals where the finction is increasing or decressing, and dotermine any relative extrema. (b) Find intrevals where the function is conelve ipward or noncave downward, and determine any infecticn pointa. (c) Graph the tunction, considering the somain, criticat points, symmetry, relative extrema, regions where the function is increasing or decrosing, infisction pointa, regisns where the function in concave upward or conaive downward, interoepts whem posside, and asymptotes where applicatele.

Answers

(a) The intervals where the function is increasing or decreasing is (-∞, -√15) U (0, √15) and (-√15, 0) U (√15, ∞).

(b) The intervals where the function is concave upward and downwards is

(-∞, -√5) U (√5, ∞) and (-√5, √5)

(c) The graph of the function is illustrated below.

(a) The first step in analyzing the behavior of the function is to find the intervals where it is increasing or decreasing. This is done by finding the derivative of the function, which represents the rate of change of the function. In this case, the derivative of the function is:

f'(x) = 4x³ - 60x

To find the intervals where the function is increasing or decreasing, we need to find the critical points of the function. These are the points where the derivative equals zero or does not exist. Setting f'(x) = 0, we get:

4x³ - 60x = 0

4x(x² - 15) = 0

x = 0 or x = ±√15

Intervals where the function is increasing:

(-∞, -√15) U (0, √15)

Intervals where the function is decreasing:

(-√15, 0) U (√15, ∞)

To determine any relative extrema of the function, we look at the sign of the derivative on either side of each critical point.

Relative maximum: (±√15, 144)

Relative minimum: (0, 189)

(b) To do this, we need to find the second derivative of the function, which represents the curvature of the function. In this case, the second derivative is:

f''(x) = 12x² - 60

To find the intervals where the function is concave upward or concave downward, we need to find the critical points of the second derivative. Setting f''(x) = 0, we get:

12x² - 60 = 0

x = ±√5

Intervals where the function is concave upward:

(-∞, -√5) U (√5, ∞)

Intervals where the function is concave downward:

(-√5, √5)

The graph of the function is illustrated as follows.

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Complete Question:

Complete parts. (a) through (c) for the following function.

x⁴-30x²+189

(a) Find intervals where the function is increasing or decreasing, and determine any relative extrema

(b) Find intervals where the function is concave upward or concave downward, and determine any infection points.

(e) Graph the function.

Damian goes to a store an buys an item that costs

x dollars. He has a coupon for 20% off, and then a 9% tax is added to the discounted price. Write an expression in terms of

x that represents the total amount that Damian paid at the register.

Answers

Therefore , the solution of the given problem of expressions comes out to be 0.872x is the equation that, in terms of x, expresses the total sum Damian paid at the register.

What does an expression signify in reality?

Shifting numbers, variable which could be expanding, decreasing, or blocking, should be used instead of random estimations. They were only able to assist one another by swapping tools, information, or fixes for problems. The statement of reality equation may include the justifications, elements, or quantitative remarks for techniques like greater dispute, fabrication, and blending.

Here,

Damian paid the following sum at the register, which is stated as follows:

=> Total price = regular price + tax.

The original price less 20% of the original price is the discounted price, which is written as follows:

=> Price after discount = x - 0.2x = 0.8x

The tax is represented as: The tax is 9% of the discounted price.

=> Tax = 0.09(0.8x) = 0.072x

Damian spent a total of x dollars at the register, hence the following phrase describes that total amount in terms of x:

Total price equals regular price plus tax.

=> Total = 0.8x+0.072x

=> Amount total = 0.872x

So, 0.872x is the equation that, in terms of x, expresses the total sum Damian paid at the register.

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Calculate the standard deviation of the set of data to two decimal places. Refer to the previous problems.
{3,3,4,5,7,8}

Answers

Answer:

The answer to your problem is, 1.91

Step-by-step explanation:

In this problem:

X = [tex]\frac{3+3+4+5+7+8}{6} = 5[/tex]

6 = [tex]\sqrt{\frac{(3-5)^{2} + (3-5)^2 + (4-5)^2 + (5-5)^2 (7-5)^2 + (8-5)^2}{2} }[/tex]

= [tex]\sqrt{\frac{22}{6} }[/tex] 16 = [tex]\sqrt{\frac{(x_{1} - x )^2 + ( x_{2} - x)^2 + (x_{n} - x )^2 }{12} }[/tex]

Which will equal around:

1.19

Real value to long in decimal place.

Final answer:

The standard deviation of the data set {3,3,4,5,7,8} is approximately 1.92. This is calculated by finding the mean, computing each value's deviation from the mean, squaring those deviations, computing the mean of those squared deviations (the variance) and then taking the square root of the variance.

Explanation:

The standard deviation is a measure of how spread out the values in a data set are. To calculate it, we need to follow certain steps. Let's compute it for your given data set: {3,3,4,5,7,8}.

Calculate the mean (average) of the data set. Add all the numbers (3+3+4+5+7+8 = 30) and divide by the total number of data points (6). Mean = 30/6 = 5.Subtract the mean from each data point to get the deviation of each point. The deviations are: -2, -2, -1, 0, 2, 3Square each deviation. The squared deviations are: 4, 4, 1, 0, 4, 9.Calculate the mean of these squared deviations. This is known as the variance. Add all the squared deviations (4+4+1+0+4+9 = 22) and divide by the total number of data points. Variance = 22/6 = 3.67 (rounded to two decimal places).Finally, calculate the square root of the variance to get the standard deviation. The square root of 3.67 is approximately 1.92 (rounded to two decimal places).

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compute the wronskian of y1 = e^5x and y2 = e^−2x are solutions to the differential equation
(d^2 y)/(dx^2 ) – 10 dy/dx + 25y=0. Find the Wronskian. c1y1+c2y2 is the general solution to the equation on what interval?

Answers

Wronskian of y1 = e^{5x} and y2 = e^{−2x} is -7e^{3x}. General solution to differential equation (d²y/dx²) -10(dy/dx) + 25y = 0 is y(x) = c1e^{5x} + c2e^{-2x} on interval of (-∞, ∞).

To compute the Wronskian of the functions y1 = e^{5x} and y2 = e^{−2x}, we use the formula:

W(y1,y2) = y1*y2' - y1'*y2

where y1' and y2' denote the derivatives of y1 and y2 with respect to x, respectively.

Taking the derivatives, we have:

y1' = 5e^{5x}

y2' = -2e^{-2x}

Substituting these values into the formula, we get:

W(y1,y2) = e^{5x}*(-2e^{-2x}) - (5e^{5x})*e^{-2x}

W(y1,y2) = -2e^{3x}- 5e^{3x}

W(y1,y2) = -7e^{3x}

Therefore, the Wronskian of y1 = e^{5x }and y2 = e^{−2x} is -7e^{3x}.

To find the general solution to the differential equation (d² y)/(dx²) - 10(dy/dx) + 25y = 0, we use the fact that y1 and y2 are linearly independent solutions, and thus the general solution has the form:

y(x) = c1y1(x) + c2y2(x)

Substituting y1 and y2, we get:

y(x) = c1e^{5x} + c2e^{-2x}

This is the general solution on the entire real line (-∞, ∞).

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Please help me with this

Answers

As a result , A) 225 ml of milk and 525 ml of cream soda must therefore be combined.

B) you'll need to combine 90 ml of milk with 210 ml of cream soda.

What is the milk-to-cream soda ratio?

Cream soda and milk are combined in a 3:7 ratio. In other words, you need 7 parts of cream soda for every 3 parts of milk.

What is a ratio?

A ratio is a numerical relationship between two sums that demonstrates how frequently one value contains or is contained within the other1.

Cream soda and milk are combined in a 3:7 ratio. In other words, you need 7 parts of cream soda for every 3 parts of milk.

a) We can use the following ratio to determine how much milk to mix with 525ml of cream soda:

7 parts cream to 3 parts milk soda

525 ml of cream soda from x parts milk

By cross-multiplying, we can find x:

3 * 525 = 7 * x

x = (3 * 525) / 7

x = 225 ml

b) Using the same ratio, we can calculate how much cream soda is required to mix with 90ml of milk as follows:

7 parts cream to 3 parts milk soda

x parts cream soda to 90 ml of milk

By cross-multiplying, we can find x:

3 * x = 7 * 90

x = (7 * 90) / 3

x = 210 ml

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find gs of the de (3xy-y^2)dx x(x-y)dy=0

Answers

To find the general solution of the differential equation (3xy-y^2)dx x(x-y)dy=0, we can start by separating the variables and integrating.

First, we can divide both sides by x(x-y) to get:

(3xy-y^2)dx = 0

Integrating both sides with respect to x, we get:

3x^2y - xy^2 = C1

where C1 is the constant of integration.

Next, we can divide both sides by y^2 to get:

(3x/y - 1/y)dx = 0

Integrating both sides with respect to x, we get:

3ln|x| - ln|y| = C2

where C2 is the constant of integration.

We can combine the two constants of integration into one by taking the exponential of both sides and simplifying:

e^(3ln|x| - ln|y|) = e^(ln|x|^3 - ln|y|) = e^ln|x|^3/y = e^C

where C = e^(C2) * C1.

Thus, the general solution to the differential equation is:

x^3/y = Ce^C

where C is a constant.

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Find the derivative. s = t4 tan t - square root t

Answers

The derivative is 4t^3 tan(t) + sec^2(t) t^4 - 1/2t^(1/2).

To find the derivative of s with respect to t, we can use the sum and product rules of differentiation.

s = t^4 tan(t) - √t

Taking the derivative of each term separately:

ds/dt = d/dt(t^4 tan(t)) - d/dt(√t)

Using the product rule for the first term:

d/dt(t^4 tan(t)) = (d/dt(t^4))(tan(t)) + (d/dt(tan(t)))(t^4)

Applying the chain rule for the derivative of tan(t):

d/dt(tan(t)) = sec^2(t)

Therefore,

d/dt(t^4 tan(t)) = (4t^3)(tan(t)) + (sec^2(t))(t^4)

Now, taking the derivative of the second term:

d/dt(√t) = (1/2)t^(-1/2)

Putting it all together:

ds/dt = (4t^3)(tan(t)) + (sec^2(t))(t^4) - (1/2)t^(-1/2)

So the derivative of s with respect to t is:

ds/dt = 4t^3 tan(t) + sec^2(t) t^4 - 1/2t^(1/2)

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can two orthogonal vectors be linearly dependent? give an answer with a proof

Answers

No, two orthogonal vectors cannot be linearly dependent. Proof: Let's suppose we have two orthogonal vectors, u and v. This means that their dot product is zero: u · v = 0.

Now, let's suppose that u and v are linearly dependent. This means that one of them is a scalar multiple of the other: u = k · v or v = k · u, where k is some non-zero scalar.

If we substitute u = k · v into the dot product formula, we get:
u · v = (k · v) · v
u · v = k · (v · v)
u · v = k · ||v||^2

Since u · v = 0 (because they are orthogonal), we have:
0 = k · ||v||^2

But k is non-zero, so this means that ||v||^2 must be zero. And ||v||^2 can only be zero if v is the zero vector. But if v is the zero vector, then u and v are not orthogonal.

Therefore, our assumption that u and v are linearly dependent must be false. Hence, two orthogonal vectors cannot be linearly dependent.
No, two orthogonal vectors cannot be linearly dependent. Orthogonal vectors are vectors whose dot product is zero, meaning they are perpendicular to each other. Linear dependence implies that one vector can be written as a scalar multiple of the other vector.

Proof: Let vectors u and v be orthogonal. Then, their dot product u•v = 0. Now, assume they are linearly dependent. In that case, u = kv for some scalar k. Taking the dot product of both sides with v, we get (kv)•v = 0. Since k(u•v) = k(0) = 0, and u•v ≠ 0 because u and v are linearly dependent, it implies k = 0. However, if k = 0, then u = 0v = 0, which is a contradiction as nonzero orthogonal vectors cannot be linearly dependent. Thus, two orthogonal vectors cannot be linearly dependent.

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Help please asap thanks

Answers

Answer:

6k - 5

Step-by-step explanation:

8k - (5 + 2k)

A minus sign before the parentheses makes all the signs of the terms in the parentheses opposite:

8k - 5 - 2k

Collect like-terms (underlined):

6k - 5

look at the right rectangular prism below.

what is the surface area in square inches of the prism

Answers

Using surface area formula for composite figure, we can find the surface area of the rectangular prism to be = 76in².

Define composite figures?

The space that any composite shape occupies is referred to as the area of composite shapes. In order to create the desired shape, a few polygons are connected to create a composite shape. These figures or forms can be constructed using a variety of geometrical elements, including triangles, squares, quadrilaterals, and others. To determine the area of a composite object, divide it into simple shapes like a square, triangle, rectangle, or hexagon.

Here in the question,

We have 6 rectangles, and we have them equal in 3 pairs.

The 1st pair of equal rectangles have dimensions,

length, l = 5in.

breadth, b = 2in.

The 2nd pair of equal rectangles have dimensions,

length = 5in

breadth, b = 4in.

The 3rd pair of equal rectangles have dimensions,

length, l = 4in

breadth, b = 2in

Area of 1st pair of rectangles = 2 × l × b

= 2 × 5 × 2

= 20in².

Area of 2nd pair of rectangles = 2 × l × b

= 2 × 5 × 4

= 40in².

Area of 3rd pair of rectangles = 2 × l × b

= 2 × 4 × 2

= 16in².

So, total surface area of the prism = 20in² + 40in² + 16in²

= 76in².

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Can you please help me thanks

Answers

Answer:

clyde needs 2/3 to bake double

Step-by-step explanation:

Which of the following steps would be most useful in proving that a circle with a radius of 3 inches is similar to a circle with a radius of 2 feet?

A) Dilate the smaller circle by a scale factor of 3/2
B) Dilate the smaller circle by a scale factor of 8
C) Rotate the larger circle 90 Degrees
D) Reflect The smaller Circle In Its diameter

Answers

The step that should be considered is option B.

Dilation:

Dilation refers to a transformation, that could be used to resize the object. It is used to make the objects larger or smaller. Since the circle have a radius of 3 inches is similar to a circle with a radius of 2 feet so this means it should be dilated the smaller number by a scale factor of 8.

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