If the diameter of the red marble is 3.0 cm, and by using the formula for volume, what is a good approximation of its volume?

1 answer:

6 0

You can solve for volume using radius or diameter.
Sphere Volume = 4/3 • π • r³ = ( π •d³)/6
We're given the diameter so let's use that.
Volume = PI * d^3 / 6

Volume = 3.14159 * 3.0^3 / 6

Volume = 3.14159 * 9 / 2

Volume = 14.137 cubic centimeters

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A cone has a radius of 11 inches and a height of 4.5 inches. What is the volume of the cone to the nearest tenth in³ ? Use 3.14

postnew [5]

Volume of a cone can be found using the equation 1/3 π r² h (or π r² h / 3)
r = 11
h = 4.5
π ≈ 3.14
(1/3) (3.14) (11²) (4.5) =
(1/3) (3.14) (121) (4.5) =
(1/3) (3.14) (544.5) =
(1/3) (1709.73) = 569.91

569.91 rounded to the nearest tenth is 569.9 so your answer would be 569.9 in³

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Alex_Xolod [135]

Answer:

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A flea 1/16 of an inch tall can jump 9 3/8 inches high. If a person 6 feet tall had the ability to jump like a flea, how high co

rodikova [14]

Answer:

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Step-by-step explanation:

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Read 2 more answers

If 1lb = 2 cups, then 1 1/2 cups =

kotykmax [81]

Set up a proportion
1 lbs = 2 cups
x lbs = 1.5 cups
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In which quadrant is θ located if sin θ is negative and sec θ is positive? I, II, III, IV?

alexira [117]

Answer: Quadrant II.

Step-by-step explanation:

1. The sine is negative in quadrant III and quadrant IV. Then:

sinθ<0 (Quadrant III and quadrant IV).

2. Secant is equal to $\frac{1}{cos(\theta )}$ and the cosine is positive in quadrant I and quadrant IV:

cosθ>0 (Quadrant I and Quadrant IV)

Secθ>0 (Quadrant I and Quadrant IV)

3. We look for a quadrant where the sine is negative and the cosine is positive. We know that the sine is negative in the IV quadrant and that the cosine and secant are positive in the IV quadrant.

Therefore the correct answer is the last one: Quadrant IV

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3 years ago