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Nookie1986 [14]
3 years ago
5

The volume of a cone is 3 cubic units and its height is x units. Which expression represents the radius of the cone base, in uni

ts?
Mathematics
2 answers:
Deffense [45]3 years ago
7 0

Answer: The volume given is 3Pi(x^3) and the radius is x. The formula for the volume of a cone is V= [1/3]Pi(r^2)*height => [1/3]Pi (r^2) x = 3Pi(x^3) => (r^2)x = 3*3(x^3) => (r^2)x = 9(x^3) => (r^2) = 9x^2 => r = sqrt[9x^2] = 3x.

So THE CORRECT Answer is: A) r = 3x

Step-by-step explanation: I just paid for this answer

yKpoI14uk [10]3 years ago
6 0
Cone Volume = (PI * radius^2 * height) / 3
3 = (PI * radius^2* x) / 3
radius^2 = 9 / (PI * x)
radius = square root (9 / (PI * x))



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Answer:

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Step-by-step explanation:

* Lets revise how to identify the type of the conic  

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* Now lets solve the problem

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* The standard form of the ellipse is

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- Lets try to make this form from the general form

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∴ (4x² - 8x) + (2y² + 16y) = 52

- Factorize the coefficients of the squared terms

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- Add and subtract this square number and form the bracket of

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# 2 ÷ 2 = 1 ⇒ (1)² = 1 ⇒ add and subtract 1

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∴ 4(x - 1)² - 4 + 2(y + 4)² - 32 = 52

∴ 4(x - 1)² - 4 + 2(y + 4)² = 32 + 4 + 52

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8 0
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Please help me with this question please clarify what you're saying thank you
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