*in the image above x=23 cm. find the surface area of the figure
(help pls)

The width of the rectangle is (x-8).

Given that, the area of a rectangle is x²-10x+16 and the length is x-2,

So, we know that the area of a rectangle is the product of its dimension,

we will factories the given polynomial and the factors obtained will be the dimensions of the rectangle,

Factorizing the polynomial,

= x²-10x+16

= x² - 8x - 2x + 16

= x(x-8) - 2(x-8)

= (x-2)(x-8)

We can say the (x-2) and (x-8) are the dimension of the rectangle.

Since, the area of a rectangle is the product of length and the width.

Hence, the width of the rectangle is (x-8).

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Answer:

84.2%

Step-by-step explanation:

420 + 380 = 800

800 / 950 = .842

.842 * 100 = 84.2

84.2 = 84.2%

Answer: x= (2/3,0) y=(0,2)

X=(4,0) y=(0,8)

X=(-3,0) y=(0,-3)

Step-by-step explanation:

Answer:

b) 33.75≤x≤34.25

Step-by-step explanation:

X could equal either 34.25 or 33.75 to give you exactly 0.25. Since the answer can be less than 0.25, it’s all numbers between 33.75 and 34.25, including those two numbers.  (That’s why the circles are filled in, unlike answer a).

The critical value of t depends on both the confidence level and the degrees of freedom.

The sample size increases, the degrees of freedom also increase, and the t-distribution approaches the normal distribution.

The z-distribution to find the critical value of z for a given confidence level.

The critical value of t for a given confidence level and degrees of freedom, we can use statistical software or online calculators.

These tools typically provide tables or functions that allow us to look up or calculate the appropriate value.

The critical value of t for a 95% confidence interval with 10 degrees of freedom.

Using an online t-distribution calculator, we can enter the values of the confidence level and degrees of freedom and obtain the result, which in this case is approximately 2.228.

If we want to construct a 95% confidence interval for a sample with 10 degrees of freedom, we would use the formula:

\(\bar x \pm t \times (s/\sqrt n)\)

\(\bar x\) is the sample mean, s is the sample standard deviation, n is the sample size, and t is the critical value we just obtained.

The critical value of t for a confidence interval, we need to know the confidence level and degrees of freedom, and we can use statistical software or online calculators to obtain the appropriate value.

This value is used in the formula for constructing the confidence interval, which depends on the sample statistics and the size of the sample.

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Answer:

sam did the most

Step-by-step explanation:

let's find box packed per day

sam - 15 boxes in 5 days

so 3 boxes in 1 day

Dylan - 60 boxes in 4 weeks and 2 days

that is 60 in 30 days

that will make 2 boxes in 1 day

Answer: 56.2

Step-by-step explanation:

hope this is the right answer :)

\( \frac{13}{4} kg \: \times 1000 = \frac{13000}{4} = 3250 \: gr\)

the answer is ........

The type of sampling described, where the researchers intentionally select a sample with 50% straight and 50% LGBTQ+ respondents, is known as "disproportionate stratified sampling."

A. Disproportionate stratified sampling involves dividing the population into different groups (strata) based on certain characteristics and then intentionally selecting a different proportion of individuals from each group. In this case, the researchers are dividing the population based on sexual orientation (straight and LGBTQ+) and selecting an equal proportion from each group.

B. Availability sampling (also known as convenience sampling) refers to selecting individuals who are readily available or convenient for the researcher. This type of sampling does not guarantee representative or unbiased results and may introduce bias into the study.

C. Snowball sampling involves starting with a small number of participants who meet certain criteria and then asking them to refer other potential participants who also meet the criteria. This sampling method is often used when the target population is difficult to reach or identify, such as in hidden or marginalized communities.

D. Simple random sampling involves randomly selecting individuals from the population without any specific stratification or deliberate imbalance. Each individual in the population has an equal chance of being selected.

Given the description provided, the sampling method of intentionally selecting 50% straight and 50% LGBTQ+ respondents represents disproportionate stratified sampling.

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Answer:

The volume of the figure is 126 cubic cm

Step-by-step explanation:

The figure consists of two rectangular prisms of dimensions 6 x 7 x 1 and 3 x7 x 4 respectively.

Calculate the first volume:

\(V_1=6~cm\cdot 7~cm\cdot 1~cm= 42~cm^3\)

\(V_1= 42~cm^3\)

Calculate the second volume:

\(V_2=3~cm\cdot 7~cm\cdot 4~cm= 84~cm^3\)

\(V_2= 84~cm^3\)

The total volume of the figure is the sum of both volumes:

\(V_t=V_1+V_2=42~cm^3+84~cm^3=126~cm^3\)

The volume of the figure is 126 cubic cm

The solution to the equation using quadratic formula is n= -1±√11

A formula that provides the solution to a quadratic issue is the quadratic formula in elementary algebra. Other approaches to solving quadratic equations outside the quadratic formula comprise factoring, solving the square, graphing, and others.

Given expression= 2 + 13n = 9n + 20

Rearranging the equation we get

= 2n²+13n-9n-20=0

= 2n²+4n-20 =0

Taking out the common factor 2, we get

= 2 (n²+2n-10) = 0

Dividing both side with same factor 2, we get

= n²+2n-10 = 0

Use the quadratic formula:

n= \(\frac{-b +/- \sqrt{b^{2} -4ac} }{2a}\)

In the given expression n²+2n-10 = 0, a=1, b=2, c=-10

Therefore, n= \(\frac{-2 +/- \sqrt{2^{2} -4*1(-10)} }{2*1}\)

After evaluating the exponents, multiplying the numbers, adding the numbers, evaluating the square root and final multiplication we get:

n= \(\frac{-2 +/- 2\sqrt{11}}{2}\)

Separating the equations and rearranging them we get:

n= -1+√11

n= -1-√11

The solution to the equation using quadratic formula is n= -1±√11

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Answer:

it represents the term of the equation

The cost of rent from 8:00 AM to 2:00 PM is $21 and for 2:15 PM is $22.5

A unit rate means a rate for one of something.

Given is a graph showing the cost of renting snowshoes for corresponding hours,

From 8:00 AM to 2:00 PM = 6 hours

According to graph,

The rent for 6 hours is $21

In an hour, the rent is $6

So, for 15 minutes = $1.5

Therefore, 8:00 AM to 2:15 PM = 6 hours + 15 minutes

Cost = 21+1.5

Cost = $22.5

Hence, The cost of rent from 8:00 AM to 2:00 PM is $21 and for 2:15 PM is $22.5

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Answer: false

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

The y-intercept is at -7, and the slope is two (move to the right one and up two or left one and down two)

Answer:

Opps i am really sorry i donot know it

Answer:

Step-by-step explanation:

It's 5 units

Answer:

through a given plane

Step-by-step explanation:

Answer:

I believe its AAS

Step-by-step explanation:

Answer:

x= 68 degrees

Step-by-step explanation:

The difference between the two approximations is approximately 26.80 so option D is the correct answer.

We have,

To approximate the definite integral  \(e^{x^2}\) from 0 to 2 using two inscribed rectangles of equal width, divide the interval [0, 2] into two subintervals of equal width (h = 2/2 = 1).

Then calculate the area of each rectangle by evaluating the function at the left endpoints of the subintervals.

Now,

Approximation using inscribed rectangles:

Approximation 1

= f(0) * h + f(1) * h

\(= e^{0^2} * 1 + e^{1^2} * 1\)

= 1 + e

Next, use the trapezoidal rule with n = 2 to approximate the definite integral.

Approximation using the trapezoidal rule with n = 2:

Approximation 2 = (h/2) * [f(0) + 2f(1) + f(2)]

= (1/2) * [f(0) + 2f(1) + f(2)]

\(= (1/2) [e^{0^2} + 2e^{1^2} + e^{2^2}] \\ = (1/2) [1 + 2e + e^4]\)

Difference = Approximation 2 - Approximation 1

\(= (1/2) [1 + 2e + e^4] - (1 + e)\\= (1/2) [1 + 2e + e^4 - 2 - 2e - e)\\= (1/2) (e^4 - e - 1)\)

Difference ≈ 26.80

Therefore,

The difference between the two approximations is approximately 26.80.

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Answer:

x = 2

Step-by-step explanation:

8x = 4x + 8

Subtract 4x from each side

8x-4x = 4x-4x + 8

4x = 8

Divide each side by 4

4x/4 = 8/4

x = 2

Answer:

= 2

Step-by-step explanation:

Subtract 4x4x from both sides.

8x-4x=88x−4x=8

2 Simplify 8x-4x8x−4x to 4x4x.

4x=84x=8

3 Divide both sides by 44.

x=\frac{8}{4}x=

​4

​

​8

​​

4 Simplify \frac{8}{4}

​4

​

​8

​​ to 22.

x=2x=2

The next step in the process of constructing parallel line CD is C. Set the compass width to the distance between point E and where the arc crosses line AB.

It's important to draw a line parellel to line AB. Then, on should set compasses' width to the distance where the lower arc crosses the two lines.

After that, it's vital to move the compasses to where the upper arc crosses the transverse.

In conclusion, the correct option is C.

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Answer:

The answer is A

Step-by-step explanation:

Answer:

8 centimeters

Explanation:

We know that the ruler indicates it's from 76 - 92. In order to find out the measurement indicated you just need to know where the arrow ends and begins. Once you do you subtract the difference. Therefore, 92 - 84 is equal to 8.

The regression equation for predicting the height of girls at age 18 based on their height at age 2 is:

y ≈ 68.953 + 1.210x

The correlation coefficient illustrates how closely two variables are related to one another. This coefficient's range is from -1 to +1. This coefficient demonstrates the degree to which the observed data for two variables are significantly associated.

Based on the given information, we can use the linear regression model to predict the height of girls at age 18 based on their height at age 2. Here are the summary statistics:

n = 70 (sample size)

x = 87.25 (mean height at age 2 in cm)

y = 166.54 (mean height at age 18 in cm)

R = 0.664 (correlation coefficient)

S = 3.33 (standard deviation of height at age 2 in cm)

\(S_y\) = 6.07 (standard deviation of height at age 18 in cm)

To predict the height of girls at age 18 (y) based on their height at age 2 (x), we can use the regression equation:

y = a + bx

where a is the y-intercept (predicted height at age 18 when x = 0) and b is the slope of the regression line.

From the given information, we have the following values:

x = 87.25

y = 166.54

R = 0.664

Using these values, we can calculate the slope (b) of the regression line:

b = R * (\(S_y\) / S)

 = 0.664 * (6.07 / 3.33)

 ≈ 1.210

Next, we can calculate the y-intercept (a) using the formula:

a = y - b * x

 = 166.54 - 1.210 * 87.25

 ≈ 68.953

Therefore, the regression equation for predicting the height of girls at age 18 based on their height at age 2 is:

y ≈ 68.953 + 1.210x

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If the raisin swells to twice its original size, relative to the water, the raisin must have been hypertonic solution.

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Answer:

20/100

depending on how many of something there is, the probability is the amount of the specific item over the total number of items

This  is formula of compound interest , where n = time .

What is the simple definition of compound interest?

the n stand for in this formula is time

the full formula  is

                  A = P(1 + r/100)ⁿ

where A = Annual amount

        P = initial amount

        R= rate

         n = time

this is formula of compound interest  

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Answer:

the y intercept is y

Step-by-step explanation:

because we have the variable already/////

The sampling distribution of the sample mean has a normal distribution with a mean of 19 and a standard deviation of 7/√123. No assumptions about the shape of the population are needed.

The sample mean is the average of the sample measurements and its sampling distribution is the probability distribution of the sample means. The shape of the sampling distribution of the sample mean is normal, which is based on the Central Limit Theorem. This theorem states that if a sample is taken from a population, no matter what the shape of the population is, the sampling distribution of the sample mean will be approximately normal if the sample size is large enough. In this case, the sample size of 123 is considered to be large enough. The mean of the sampling distribution is equal to the mean of the population (19) and the standard deviation of the sampling distribution is equal to the standard deviation of the population (7) divided by the square root of the sample size (√123). No assumptions about the shape of the population are needed to determine the shape of the sampling distribution of the sample mean.

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