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3 years ago

I need help here is the problem

Mathematics

2 answers:

const2013 [10]3 years ago

6 0

Step-by-step explanation:

area of a circle is = π r²

π × (3.6)²

= π × 12.96

= 12.96π

leva [86]3 years ago

5 0

Answer:

12.96pi

Step-by-step explanation:

area = r^2 *pi

= 3.6^2 * pi

= 12.96pi

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8(1 + 5x) + 5 = -22 + 5x

docker41 [41]

Answer:

45x - 9

step by step explanation:

hope this helps!

6 0

3 years ago

Which of the following exponential functions goes through the points (1, 12) and (2, 36)?

Savatey [412]

Answer:

The function through which given point passes is f(x) = 24 x - 12 .

Step-by-step explanation:

Given as :

The points are

$x_1$ , $y_1$ = 1 , 12

$x_2$ , $y_2$ = 2 , 36

now, slope of the line

Let The slope of line = m = $\frac{y_2-y_1}{x_2-x_1}$

Or, m = $\frac{36 - 12}{2-1}$

Or, m = 24

So The slope of line = m = 24

<u>Now, equation of line in point-slope form</u>

y - $y_1$ = m × (x - $x_1$ )

Or, y - 12 = 24 × (x - 1 )

or, y - 12 = 24 x - 24

or, y = 24 x - 24 + 12

or, y = 24 x - 12

or , f(x) = 24 x - 12

So, The function through which given point passes is f(x) = 24 x - 12 . Answer

5 0

3 years ago

From a group of 12 students, we want to select a random sample of 4 students to serve on a university committee. How many combin

borishaifa [10]

Answer:

495 combinations of 4 students can be selected.

Step-by-step explanation:

The order of the students in the sample is not important. So we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

How many combination of random samples of 4 students can be selected?

4 from a set of 12. So

$C_{n,x} = \frac{12!}{4!(8)!} = 495$

495 combinations of 4 students can be selected.

8 0

3 years ago

<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2By%5E%7B2%7D%5Cleq%201%5C%5Cy-x%5E%7B2%7D%5C%20%20%5Ctextgreater%20%5C%200" id

Ilya [14]

Answer:

hi how are you

good afternoon

7 0

3 years ago

Nathaniel is making muffins. Each batch uses 2 cups of flour. He plans to use less than 40 cups of flour for muffins so that he

MAXImum [283]

The number of batches Nathaniel can make is 16.5 batches.

Nathaniel plans to make use of less than 40 cups of flour and he has already used 6 cups of flour. In order to determine how many batches he can make, we have to determine the number of cups of flour he can use. The cups of flour would be divided by the amount of flour that can be used to make a batch of muffins.

Maximum amount of flour Nathaniel can use = 39 - 6 = 33

Number of batches he can make = 33 / 2 = 16.5 batches

To learn more about division, please check: brainly.com/question/194007

8 0

2 years ago