3 years ago

What is the volume of a ball with a radius of 3in and 3.14 for pie

Mathematics

1 answer:

emmainna [20.7K]3 years ago

6 0

Answer:

63.585 or 63.59

Step-by-step explanation:

Volume of a circle: $\frac{3}{4}$ πr³

3³ = 27

27 x 3.14 = 84.78

84.78 x $\frac{3}{4}$ = 63.585 or 63.59

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Write 14/√2 + √50 in the form b√2 where b is an integer.

kifflom [539]

Answer:

$12 \sqrt{2}$

Step-by-step explanation:

Taking the terms one at a time,

$\frac{14}{ \sqrt{2} } \\ \frac{14 * \sqrt{2} }{ \sqrt{2} * \sqrt{2} } \\ \frac{14 \sqrt{2} }{2} \\ 7 \sqrt{2}$

$\sqrt{50} \\ \sqrt{25 * 2} \\ \sqrt{25}* \sqrt{2} \\ 5 * \sqrt{2} \\ 5 \sqrt{2}$

Adding the terms, you have;

$7 \sqrt{2} + 5 \sqrt{2} =(7 + 5) \sqrt{2} = 12 \sqrt{2}$

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2 years ago

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Evaluate 4x^2 y^-3 for x=3 and y=-2

Doss [256]

Answer:

36 and -1/8

Step-by-step explanation:

x^2 = 3^2 = 9 * 4 = 36

y^-3 = (-2)^-3 = -1/8

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2 years ago

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Given that (-4,-4) is on the graph of f(x), find the corresponding point for the function 1/2 f(x)

marusya05 [52]

Answer:

(-4, -2)

Step-by-step explanation:

The x-coordinate would stay the same, but the y-coordinate would be halved. Thus, the corresponding point would be (-4, -2).

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3 years ago

Can you please answer everything. What fraction every letter on their can run in a minute. Reward brainiest answer: 15 points

oksian1 [2.3K]

Student B:
1/2 / 4
= 1/2 x 1/4
= 1/8

student A:
2/3 / 6
= 2/3 x 1/6
= 1/9

student C:
4/5/ 8
= 4/5 x 1/8
= 1/10

answer
student B: 1/8 of a mile per minute
student A: 1/9 of a mile per minute
student C: 1/10 of a mile per minute

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2 years ago

Please help asap will mark brainlest

JulijaS [17]

Answer: -79, 21, 46, 80

Step-by-step explanation:

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3 years ago

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