Simplify the expression showing each step.
3(2+7)-5

22

Step-by-step explanation:

Simplify the following:

3 (2 + 7) - 5

Hint: | Evaluate 2 + 7.

2 + 7 = 9:

3×9 - 5

Hint: | Multiply 3 and 9 together.

3×9 = 27:

27 - 5

Hint: | Subtract 5 from 27.

| 2 | 7

- | | 5

| 2 | 2:

22

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere