The volume of a cylinder is 4pi x(3) cubic units and its height is x units. Which expression represents the radius of the cylind
er in units? 2x, 4x, 2 pi x^, 4 pi x^
2 answers:
Answer:
2x
Step-by-step explanation:
Volume of a cylinder is:
V = πr²h
If V = 4πx³ and h = x, then:
4πx³ = πr²x
4x² = r²
r = 2x
For this case we have that by definition, the volume of a cylinder is given by:

Where:
r: It's the radio
h: It's the height
We have as data that the volume of the cylinder is:

They also tell us that the height is "x", then:

We have similar terms on both sides of the equation:

We apply root to both sides of the equation:

We choose the positive value. Now the radio is 2x
Answer:

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Answer:
C
Step-by-step explanation:
(9x^2 +4x -7) - x^2 +2x - 6
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Get a grip on your life son. This is really simple.
I think it's equal to 1 because every expression with the exponent of zero is equal to 1, idk for sure though
It’s either subtract 75 from both sides or divide both sides by 1/2 but I’m pretty sure it’s subtract 75 from both sides