Need help te slim is designing a cover for a book he wants to have a rectangler grid

Answer:

x = 2

Explanation:

Given:

BG = 27

AG = 13 + 7x

Note that when three perpendicular bisectors of the sides of a triangle meet at a point, the point is called a Circumcenter.

Also, note that the Circumcenter is equidistant from the vertices of the triangle.

So for the given triangle, G is the circumcenter, and AG = BG = CG.

Let's go ahead and solve for x as seen below;

Let's subtract 13 from both sides of the equation, we'll have;

Let's divide both sides by 7;

So the value of x is 2

Answer: The cost to make 400 baseball caps is $3,200

Step-by-step explanation:

The answer they gave you is a set of coords, x and y coords to be exact. That means that x value is inputed into the equation and that y value is the asnwer.

You put in 400, you get 3200.

They also gave us that x equals the number of baseball caps. Then y equals the cost of making those baseball caps

Answer:

The cost to produce 400 caps is the same as the income made from selling 400 caps.

The company will break even when it sells 400 caps; it will not make a profit.

Step-by-step explanation:

EDGE 2021

Answer:

There is no inverse. To solve for Inverse you have to interchange the varibles and solve for y

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.step. i^25^i

2.step. Rewrite (i^4)6^i=i^4

3.step. Rewrite (i^2)^2

4.step. ((i^2)^2)^6i

5.step. i^2 as -1

6.step. ((-1)^2)^6i

7.step. Raise −1 to the power of 2

i^6i

8.step.One to any power is one.

i1

9.step.Multiply i by 1.

ix1=i

Answer:

It depends how many points you already have

Step-by-step explanation:

how much are the essays worth? i might be able to get your final score if you tell me

Answer: 40

Step-by-step explanation:

Assume Julio's number is x.

The expression would be:

-7 * (x - 15) = -175

x - 15 = -175/-7

x = -175/-7 + 15

x = 40

The difference of (6d + 5) - (2 - 3d) is 9d + 3.

The action of subtracting a matrix, vector, or other quantity from another according to predetermined rules in order to find the difference.

Given expression:

(6d + 5) - (2 - 3d)

Calculate the difference as shown below,

= 6d + 5 - 2 + 3d

= 9d + 3

Therefore, the difference of (6d + 5) - (2 - 3d) is 9d + 3.

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Step-by-step explanation:

When adding or subtracting fractions, they must have a common denominator....20 is the easiest for these...this then becomes

b +  16/20  = 35/20     now subtract 16/20 from both sides of the equation

b = 35/20 - 16/20

b = (35-16)/20 =  19/20      

The critical value of a one-tailed t-test with degrees of freedom of 8 and using an alpha level of 0.01 is approximately 2.896.

To find the critical value of a one-tailed t-test with degrees of freedom (df) = 8 and an alpha level of 0.01, follow these steps:

1. Identify the degrees of freedom (df): In this case, df = 8.
2. Determine the alpha level: Here, the alpha level is 0.01.
3. Check a t-distribution table for the critical value corresponding to the given degrees of freedom and alpha level.

Using a t-distribution table, the critical value for a one-tailed t-test with df = 8 and an alpha level of 0.01 is approximately 2.896.

Your answer: The critical value of a one-tailed t-test with degrees of freedom of 8 and using an alpha level of 0.01 is approximately 2.896.

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The equation of the line is 5x + y = 12.

What is meaning of coordinate plane?

Two number lines combine to generate the two-dimensional surface known as the coordinate plane. The x-axis is a single horizontal number line. The y-axis is the name of the vertical number line that is the other number line. The origin is where the two axes come together. The coordinate plane can be used to graph points, lines, and other things.

Given that a line passes through the point (-5, -4) and (0, -3).

The slope of the line is = ( - 3 -(-4))/(0- (-5)) = 1/5

Since the required line is parallel to the above line, the slope of the required line is = - 1/( 1/5) = -5

The equation of line passes through points (x₁, y₁) and slope is m is

y - y₁ =m(x - x₁)

Putting m = -5 and  x₁ = -2 and y₁ = 2:

y - 2 = -5( x- (-2))

y -2 = -5x +10

5x + y =12

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When summarizing heavily skewed data, the best measure of central tendency is the median.

In situations where the data distribution is heavily skewed, the mean may not accurately represent the central tendency of the data. Skewness refers to the asymmetry of the data distribution, where the tail of the distribution extends more to one side. When data is heavily skewed, it can be influenced by extreme values, leading to an unbalanced representation of central tendency if the mean is used.

The median, on the other hand, is less affected by extreme values and provides a better measure of central tendency for skewed data. The median represents the middle value in a data set when the observations are arranged in ascending or descending order. Unlike the mean, it is not influenced by extreme values, making it a robust measure for summarizing skewed data.

By using the median, we can capture the central value that is more representative of the majority of the data points, even in the presence of outliers or skewed distributions. It provides a better understanding of the typical value or position within the data set, regardless of extreme values or asymmetric distributions.

Therefore, when summarizing heavily skewed data, the median is considered the best measure of central tendency as it provides a more accurate representation of the center of the distribution and is less influenced by extreme values.

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Answer:

the correct answer is d.

Step-by-step explanation:

i hope this helps :)

Answer:

D.

Step-by-step explanation:

The line crosses the x-axis at 4 and the y-axis at -2.

Answer: D.

a. The probability of exactly 4 successes is approximately 0.2967.

b. The probability of 5 or more successes is approximately 0.5332.

c. The probability of exactly 6 successes is approximately 0.1399.

d. The expected value of the random variable is 3.96

To solve these problems, we'll use the binomial probability formula:

P(X = k) = C(n, k)× \(p^{k}\)× \((1-p)^{(n-k)}\)

where:

P(X = k) is the probability of getting exactly k successes,

n is the sample size,

p is the probability of success,

C(n, k) is the number of combinations of n items taken k at a time.

Now let's solve each part of the problem:

a. The probability of exactly 4 successes:

P(X = 4) = C(6, 4) × (0.66)⁴ × (1 - 0.66)⁽⁶⁻⁴⁾

C(6, 4) = 6! / (4! × (6 - 4)!) = 6! / (4! × 2!) = (6 × 5) / (2 × 1) = 15

P(X = 4) = 15 × (0.66)⁴ × (0.34)² ≈ 0.2967 (rounded to four decimal places)

b. The probability of 5 or more successes:

P(X ≥ 5) = P(X = 5) + P(X = 6)

P(X = 5) = C(6, 5) × (0.66)⁵ × (1 - 0.66)⁽⁶⁻⁵⁾ = 6 × (0.66)⁵ × (0.34)¹ ≈ 0.3933

P(X = 6) = C(6, 6) × (0.66)⁶ × (1 - 0.66)⁽⁶⁻⁶⁾ = 1 × (0.66)⁶× (0.34)⁰ = 0.1399

P(X ≥ 5) = P(X = 5) + P(X = 6) = 0.3933 + 0.1399 ≈ 0.5332 (rounded to four decimal places)

c. The probability of exactly 6 successes:

P(X = 6) = C(6, 6) × (0.66)⁶ × (1 - 0.66)⁽⁶⁻⁶⁾ = 1 × (0.66)⁶ × (0.34)⁰= 0.1399

d. The expected value of the random variable:

The expected value (mean) of a binomial distribution is given by:

E(X) = n × p

E(X) = 6 × 0.66 = 3.96

Therefore:

a. The probability of exactly 4 successes is approximately 0.2967.

b. The probability of 5 or more successes is approximately 0.5332.

c. The probability of exactly 6 successes is approximately 0.1399.

d. The expected value of the random variable is 3.96

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Answer:

5

Step-by-step explanation:

the angles need to add up to 180

60 + 40 =100

180 - 100 =80

80 - 5 =75

75/15 =5

The middle 20% of Martian heights lie between approximately 65.0867 inches and 70.9133 inches.

a. The distribution of X, the height of Martian adult males, is normally distributed with a mean (μ) of 68 inches and a standard deviation (σ) of 2.3 inches. Therefore, the distribution of X can be represented as X ~ N(68, 2.3²) or X ~ N(68, 5.29).

b. To find the probability that the person's height is between 66 and 69.5 inches, we need to calculate the area under the normal distribution curve between these two values.

Using the z-score formula: z = (x - μ) / σ

For x = 66 inches:

z1 = (66 - 68) / 2.3 ≈ -0.8696

For x = 69.5 inches:

z2 = (69.5 - 68) / 2.3 ≈ 0.6522

Now, we need to find the area under the normal distribution curve between z1 and z2. We can use a standard normal distribution table or a calculator to find these probabilities.

Using a standard normal distribution table, the probability for z between -0.8696 and 0.6522 is approximately 0.6968.

Therefore, the probability that the person's height is between 66 and 69.5 inches is approximately 0.6968.

c. The middle 20% of Martian heights means we need to find the range of heights that encompasses the central 20% of the distribution.

To find the range of heights, we need to determine the z-scores that correspond to the lower and upper percentiles of the middle 20% (10% on each side). We can then convert these z-scores back to actual heights.

The lower percentile for the middle 20% is (1 - 0.20)/2 = 0.40/2 = 0.10. This corresponds to a z-score of approximately -1.2816.

The upper percentile for the middle 20% is 1 - 0.10 = 0.90. This corresponds to a z-score of approximately 1.2816.

Now we can calculate the actual heights using the z-score formula:

For the lower height:

x1 = μ + z1 × σ = 68 + (-1.2816)× 2.3 ≈ 65.0867

For the upper height:

x2 = μ + z2× σ = 68 + 1.2816 × 2.3 ≈ 70.9133

Therefore, the middle 20% of Martian heights lie between approximately 65.0867 inches and 70.9133 inches.

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Answer:

8

Step-by-step explanation:

If the matrices \(A= \left[\begin{array}{ccc}1\\0\\4\\ -2\end{array}\right]\)​ and \(B=\left[\begin{array}{cccc}6&-7&-1& 8 \end{array}\right]\), then products AB= \(\left[\begin{array}{cccc}6&-7&-1&8\\0&0&0&0\\24&-28&-4&32\\-12&14&2&-16\end{array}\right]\) and BA= \(\left[\begin{array}{c}-14\end{array}\right]\)

To find the products AB and BA, follow these steps:

Therefore, the products AB and BA of matrices A and B can be calculated.

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Answer:

the answer is 2:4

Step-by-step explanation:

Answer:

4x + 6y = 23

Step-by-step explanation:

xm = -5+3/2=-1

ym= 5+4/2 = 9/2

xm= 1+3/2=2

ym= 1+4/2=5/2

m= y2-y1/x2-x1

m= 5/2-9/2 / 2-(-1)

m=4/-2 /3

m=-2/3

Negative linear correlation between variables.

The statement "The more you save (x), the less you spend (y)" suggests a negative linear correlation between the variables x and y. In a negative linear correlation, as one variable increases, the other variable decreases at a constant rate.

In this case, as the amount saved (x) increases, the amount spent (y) decreases. This implies that if someone saves more money, they tend to spend less money. It is important to note that correlation does not necessarily imply causation.

In other words, just because there is a negative linear correlation between the amount saved and the amount spent, it does not mean that saving more money causes people to spend less. There may be other factors that influence both variables. Nonetheless, understanding the nature of the correlation between variables can be useful in making predictions and analyzing data.

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Answer:

Step-by-step explanation:

AB

away fram house

2km 4mins

rate: 1km\minute

BC

away from house

5km 6mins

rate:0.83km\minute

CD

niether

0km 9mins

no rate

DE

toward house

6km 15mins

0.4km\minute

Answer:

q=10, r=8

Step-by-step explanation:

You have to first cancel one of the variables.

8q-15r=-40

4q+2r=56

To do this, multiply the second equation by -2.

8q-15r=-40

-2(4q+2r)=(56)(-2)

Multiply it out.

8q-15r=-40

-8q-4r=-112

Combine like terms.

-19r = -152

Divide by -19 to get the value of r.

r=8

Substitute r back into one of the equations, it does not matter which one. I'll do both.

8q-15(8)=-40

8q-120=-40

8q=80

q=10

4q+2(8)=56

4q+16=56

4q=40

q=10

You should get the same value for q for both.

In the instance where the variables are x and y, which they usually are, you would write your answer as an ordered pair, (x, y).

(10, 8)

Answer:

q=10 and r=8

Step-by-step explanation:

8q-15r=-40 ...........equation(i)

4q+2r=56................eqn(ii)

Now,

Multiplying eqn (ii) by 2 then we get,

8q+4r=112..........eqn(iii)

Here, Subtracting eqn (i) and (iii)

8q-15r=-40

8q+4r=112

(-) (-) (-)

---------------------

-19r=-152

r= -152/-19

r= 8

Again, Putting the value of r in eqn (ii)

4q+2r=56

4q+2×8=56

4q=56-16

q=40/4

q=10

The statement is true. If a function f is differentiable at a point a, then the line tangent to f at x = a can be used to approximate values of f near x = a.

The line tangent to f at x = a is the best linear approximation to the function f at x = a. It is the line that passes through the point (a, f(a)) and has a slope equal to the derivative of f at x = a, denoted f'(a). This line is also known as the linearization of f at x = a.

To approximate the value of f at a nearby point x = a + h, where h is a small number, we can use the equation of the tangent line:

y = f(a) + f'(a) * (x - a)

Substituting x = a + h into this equation gives:

y = f(a) + f'(a) * (a + h - a)

y = f(a) + f'(a) * h

Therefore, an approximation for the value of f at x = a + h is given by f(a) + f'(a) * h. This is known as the linear approximation or tangent line approximation of f at x = a.

However, it is important to note that this approximation is only accurate when h is small, and the function f is differentiable at x = a. If h is large or the function is not differentiable at x = a, the approximation may not be accurate.

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The estimated standard error and measures of effect size such as r2 and Cohen's d larger variance increases the standard error but decreases measures of effect size. B.

Larger variance increases the standard error but decreases measures of effect size.

The standard error is a measure of how much the sample mean is likely to vary from the true population mean.

It is calculated as the standard deviation of the sample divided by the square root of the sample size.

If the sample variance is large, the standard deviation of the sample will also be large, resulting in a larger standard error.

Measures of effect size, such as r2 and Cohen's d, indicate the strength of the relationship between variables or the size of the difference between groups, respectively.

Larger sample variances indicate greater variability in the data, which can make it more difficult to detect significant effects.

This can result in smaller effect sizes, as the magnitude of the effect is reduced relative to the variability in the data.

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Answer:

Step-by-step explanation:

(1 + 11)/(-2+5)= 12/3=4

y + 11 = 4(x + 5)

y + 11 = 4x + 20

y = 4x + 9

The correct interpretation is b) There is not a significant difference between the sample value and the population.

In the given statement, z = 1.42 and p > .05. The z-value represents the standardized difference between the sample value and the population mean, while the p-value represents the probability of observing a result as extreme as, or more extreme than, the observed result under the null hypothesis (no difference between the sample value and the population mean). A p-value greater than .05 indicates that the difference between the sample value and the population mean is not statistically significant, meaning we cannot reject the null hypothesis.

Based on the provided information (z = 1.42, p > .05), we can conclude that there is not a significant difference between the sample value and the population.

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The length of the QR is 16 cm when PQR ~MNO

In the given question, it is given that two similar triangles as PQR ~MNO

Then, the corresponding sides will be in equal proportion to each other as follows

PQ / MN = PR / MO = QR / NO

We need to find the length of the side QR

As above relations are given,

\(\frac{PQ}{MN}\) = \(\frac{PR}{MO}\) = \(\frac{QR}{NO}\)

\(\frac{30}{10}\) = \(\frac{5x + 7}{x+5}\) = \(\frac{4x}{\frac{16}{3} }\)

Equating all the fractions, equal to each we'll find

\(\frac{5x + 7}{x+5}\) = \(\frac{30}{10}\)

5x + 7 = 3(x +5)

5x + 7 = 3x + 15

2x = 8

x = 4

We know that, the length of the QR = 4x cm = 4 x 4 cm = 16 cm

Therefore, the length of the QR is 16 cm when PQR ~MNO

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Answer:

n³ - 7

Step-by-step explanation:

number = n

because 7 is less then the number cubed it's being subtracted by n³