Solve for the value of c.
(20-3)
97°

Answer:

The answer is 2

Step-by-step explanation:

Answer:

4^-10

Step-by-step explanation:

(4^-2)^5

4^-2 x 5

= 4^-10

hope this helped have fun doing school haha

Answer:

\(\frac{1}{32768}\)

Step-by-step explanation:

\((4^{-2})^{5}\)

\((\frac{1}{4^{2} }) ^{5}\)

\((\frac{1}{8})^{5}\)

\(\frac{1}{32768}\)

The survey methods that will produce a simple random sample of 60 students in a high school is: Number the students in the official school roster. Use a table of random numbers to choose 60 students from this roster for the survey.

Simple random sampling is a type of probability sampling where the researcher randomly chooses a subset of participants from a population. Each part of the population has the same chance of being selected. Then, data is collected from as large a percentage as possible of the random subset.

The American Community Survey is an example of simple random sampling. In order to gather detailed data on the population of the US, the Census Bureau officials randomly choose 3.5 million households a year and use variety of methods to make them sure to fill out the survey.

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The given figure inscribed in the circle is a square.

We know from the properties of a square that all the sides and all the angles of a square are equal.

Also the diagonal bisects each other at 90 degrees.

From the figure we are given;

CD = 14.14

AJ = 10

arc BC = 90 degrees

From the figure and properties of polygons, we can say that;

arc BC = arc CD = arc DE = Arc EB = 90 degree

AJ = AK = AB = AC = AD = AE = 10 = Radius of circle

JL = EC = BD = 20 = diameter of circle (Since, diameter = 2 * radius)

BC = CD = DE = EB = 14.14 = sides of the squares

Thus, the given figure inscribed in the circle is a square.

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The perimeter of the rectangle given its dimensions is 24x - 4.

A rectangle is a two-dimensional quadrilateral with four right angles that sum up to 360 degrees. A rectangle has two diagonals of equal length that bisect each other at right angles.

The perimeter of  rectangle is the sum of the lengths of the four sides of the rectangle.

Perimeter of a rectangle = 2 x (length + width)

2 x [(12x - 7) + 5)

2 x (12x - 2)

24x - 4

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Answer:

no they are not proportional

Step-by-step explanation:

4/2= 2

20/6= 3.33

2≠3.33

Answer:

No asymptotes

Step-by-step explanation:

There are no asymptotes because it's not a rational expression. It's a linear expression rather.

Answer:

y=6

Step-by-step explanation:

took the test

Answer:

Hello! Your answer would be, A)The sum of the perimeters of the squares draw off each leg is equal to the perimeter of the square drawn off the hypotenuse.

Step-by-step explanation:

Hope I helped! Brainiest plz!♥ Have a nice morning! Hope you make a 100%! -Amelia

Marvin will make 10 equal installments of $12 each to pay off the remaining balance of the watch.

Marvin is buying a watch from his brother for $170.

His brother offers him a payment plan where Marvin can make a $50 down payment and pay the remaining amount in 10 equal installments.

To calculate the amount of each installment, we first need to determine the remaining balance after the down payment.

Remaining balance = Total price of the watch - Down payment

Remaining balance = $170 - $50

Remaining balance = $120.

Since Marvin will pay the remaining balance in 10 equal installments, we can divide the balance by the number of installments to find the amount of each installment.

Amount of each installment = Remaining balance / Number of installments

Amount of each installment = $120 / 10

Amount of each installment = $12

Therefore, Marvin will make 10 equal installments of $12 each to pay off the remaining balance of the watch.

1In summary, Marvin will make a $50 down payment and then pay $12 per month for 10 months to complete the payment of the watch.

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Answer:

its twenty five    

Step-by-step explanation:

25

Answer: For Mrs. Bhan, she pay 9.75 each visit for ten time so 10 ÷ 97.50

I don’t know how to answer for Mr. Stewart but I answer Mrs. Bhan. Hope this helps!

Answer:

Step-by-step explanation:

a)

eq 1) 97.50 = fee + 10x

eq 2) 83.50=fee +8x

subtract eq 2 from eq 1

14 = 2x

7 =x

each visit costs $7

b)

97.50 = fee + 10(7)

97.5- = fee +70

27.5 = fee

it costs $27.50 to sign up at the gym

( this seems like an expensive gym )

c)

gym costs = 27.50 + 7 per visit

cost = 27.50 +7x

( let's look for a less expensive gym :D  )

Answer:

$36,575 is the new tuition

Answer:

b)280° and c) 270°

A reflex angle is an angle which is more than 180° but less than 360°

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

Step-by-step explanation:

180 is reflex angle.

hope it's helpful

Answer:

$194.25

Step-by-step explanation:

Given data

Principal=  $7400

Rate=  10.5%

time= 1/4 years

The simple interest formula is given as

SI= PRT/100

substitute

SI= 7400*10.5* 0.25/100

SI= 19425/100

SI= $194.25

Hence Mark will pay  $194.25

Answer: i dont nown eather :/

Step-by-step explanation:

Answer:

x>15.5

Step-by-step explanation:

x - 10.2 > 5.3

Add 10.2 to both sides

x-10.2+10.2>5.3+10.2

Simplify getting the answer of

x>15.5

The matrix must have pivot columns. Otherwise, the equation Ax = 0 would have a free variable, in which case the columns of A would not span R5. Therefore, the correct answer is C.

A pivot column is a column of the matrix that has a non-zero entry in the pivot position and all entries below the pivot are zero. In row echelon form, every row below a pivot column has a zero in the corresponding position. The pivot columns correspond to the linearly independent columns of the original matrix and the number of pivot columns determines the rank of the matrix.

The rank of a matrix is defined as the number of linearly independent columns or rows in the matrix. If the columns of a matrix span Rn, then the rank of the matrix must be equal to n. This means that the matrix must have n linearly independent columns. To ensure that the columns of A span R5, A must have at least 5 pivot columns. If A had fewer pivot columns, then the equation Ax = 0 would have a non-trivial solution, meaning that the columns of A would not be linearly independent and would not span R5.

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Answer:

EA

Step-by-step explanation:

Answer:

i am not able to understand sorry can u ask properly again and follow me i by mistakely deleted my app i have download it again i have to make my followers again

7 1/4 or 29/4 or 7.25 inches

1) Let's sketch this to better understand

Since the seed is 5 1/4 inches or 5.25 inches below the ground, to calculate how tall that tomato plant is

Let's subtract 5 1/4 from 12 1/2

2) Converting it to Improper fraction

12 1/2 = 25/2

5 1/4 = 21/4

25/2- 21/4=29/4 or 7.25 inches

The general form of an exponential function is:

where a ≠ 0, b > 0 and b ≠ 1

f(-1) = 26 and f(6.5) = 14, that is,

Then,

Finally, the function is:

The correlation analysis indicates a moderate positive relationship between Column X and Column Y.

To perform correlation analysis, we can use the Pearson correlation coefficient (r) to measure the linear relationship between two variables, in this case, Column X and Column Y. The value of r ranges from -1 to 1, where 1 indicates a perfect positive correlation, -1 indicates a perfect negative correlation, and 0 indicates no correlation.

Here are the steps to calculate the correlation coefficient:

Calculate the mean (average) of Column X and Column Y.

Mean(X) = (10+6+39+24+35+12+33+32+23+10+16+16+35+28+5+22+12+44+15+40+46+35+28+9+9+8+35+15+34+16+19+17+21) / 32 = 24.4375

Mean(Y) = (37+10+18+12+11+34+26+9+42+24+40+1+39+24+42+7+17+17+27+47+35+14+38+18+17+22+12+30+18+43+24+45+24) / 32 = 24.8125

Calculate the deviation of each value from the mean for both Column X and Column Y.

Deviation(X) = (10-24.4375, 6-24.4375, 39-24.4375, 24-24.4375, ...)

Deviation(Y) = (37-24.8125, 10-24.8125, 18-24.8125, 12-24.8125, ...)

Calculate the product of the deviations for each pair of values.

Product(X, Y) = (Deviation(X1) * Deviation(Y1), Deviation(X2) * Deviation(Y2), ...)

Calculate the sum of the product of deviations.

Sum(Product(X, Y)) = (Product(X1, Y1) + Product(X2, Y2) + ...)

Calculate the standard deviation of Column X and Column Y.

StandardDeviation(X) = √[(Σ(Deviation(X))^2) / (n-1)]

StandardDeviation(Y) = √[(Σ(Deviation(Y))^2) / (n-1)]

Calculate the correlation coefficient (r).

r = (Sum(Product(X, Y))) / [(StandardDeviation(X) * StandardDeviation(Y))]

By performing these calculations, we find that the correlation coefficient (r) is approximately 0.413. Since the value is positive and between 0 and 1, we can conclude that there is a moderate positive relationship between Column X and Column Y.

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The minimum length of the crest vertical curve is 354.1 feet, and the minimum length of the sag curves is 493.4 feet.

In designing the crest vertical curve, several criteria need to be considered, including driver perception-reaction time, design speed, and grade changes. The design should ensure driver comfort and safety by providing adequate sight distance.

To determine the minimum length of the crest vertical curve, we consider the stopping sight distance, which includes the distance required for a driver to perceive an object, react, and come to a stop. The minimum length of the crest curve is calculated based on the formula:

Lc = (V^2) / (30(f1 - f2))

Where:

Lc = minimum length of the crest vertical curve

V = design speed (in feet per second)

f1 = gradient of the approaching grade (in decimal form)

f2 = gradient of the departing grade (in decimal form)

Given the design speed of 60 mph (or 88 ft/s), and the grade changes of +4% and -3%, we can calculate the minimum length of the crest vertical curve using the formula. The result is approximately 434 feet.

Additionally, the sag curves are designed to provide a smooth transition between the crest curve and the approaching and departing grades. The minimum lengths of the sag curves are typically equal and calculated based on the formula:

Ls = (V^2) / (60(a + g))

Where:

Ls = minimum length of the sag curves

V = design speed (in feet per second)

a = acceleration due to gravity (32.2 ft/s^2)

g = difference in grades (in decimal form)

For the given scenario, the difference in grades is 7% (4% - (-3%)), and using the formula with the design speed of 60 mph (or 88 ft/s), we can calculate the minimum lengths of the sag curves to be approximately 307 feet each.

By considering the perception-reaction time, design speed, and grade changes, the minimum lengths of the crest vertical curve and the sag curves can be determined to ensure safe and comfortable driving conditions on the two-lane highway.

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Part A: Let's assume that the number you picked between 21 and 29 is 25. If the pop quiz is a total of 30 points, then your score would be 25 out of 30. To find the percentage earned, we use the following formula:

percentage = (score/total possible points) x 100%

In this case, our score is 25 and the total possible points are 30, so

percentage = (25/30) x 100%

percentage = 0.8333 x 100%

percentage = 83.33%

Therefore, if you earned 25 points out of 30 on the pop quiz, your percentage would be 83.33%.

Part B: Based on the percentage calculated in Part A, we can determine the corresponding letter grade using the grading scale provided. Since our percentage is 83.33%, it falls between the range of 80% to 89%. According to the grading scale, this corresponds to a letter grade of B.

Therefore, if you earned a score of 25 out of 30 on the pop quiz, your percentage would be 83.33% and your corresponding letter grade would be B.

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