Answer:
the correct answer is A<
Step-by-step explanation:
<u>Given</u>:
Let x represents the radius of the cylinder.
Given that the height of the cylinder is twice the radius of its base.
The height of the cylinder is 2x.
We need to determine the volume of the cylinder.
<u>Volume of the cylinder:</u>
The volume of the cylinder can be determined using the formula,

Substituting r = x and h = 2x, we get;

Simplifying, we get;


Thus, the expression that represents the volume of the cylinder is 2πx³ cubic units.
Hence, Option b is the correct answer.
Answer:
5
Step-by-step explanation:
Divide 30 by 6, since this will find the number of chairs she can paint in 1 minute:
30/6
= 5
So, the constant of proportionality is 5, since she can paint 5 chairs in a minute.
Answer:
x > -2
Step-by-step explanation:
First: - 9x – 15 < 3, you would want to take the 15 and add from each side.
Now it looks like: - 9x < 18
Second: You want to take the -9 and divide it from 18
Now it looks like: x < -2
Third: Chnage the less than sign into a greather than sign because we are dealing with a negative #
Now it looks like: x > -2