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3 years ago

13

What is the approximate volume if this cone 9cm by 15cm

1 answer:

ArbitrLikvidat [17]3 years ago

5 0

<em>Hello there, and thank you for asking your question here on brainly.

<u>Short answer: A. 1272 cm</u></em>³
<em>
Why?

When finding the volume of a cone, you use the formula <u>V = </u></em><u><em>πr²h/3. </em></u><em>R = 9, H = 15. V = π9²15/3 9</em>² = <em>81 | 15 / 3 = 5 | 3.14 * 81 = 254.34 | 254.34 * 5 = 1271.2 1272 rounded.

Hope this helped you! ♥</em>

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Lisa studies 5 hours for a particular test and gets a score of 77. At this rate, how many hours would she have to study to get a

Murljashka [212]

77/5=99/x
77x=5*99
77x=495
x=495/77
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3 years ago

a six sided die is rolled 15 times with these results (1,1) (2,3) (3,4) (4,4) (5,1) (6,2) what is the experimental probabilitly

GenaCL600 [577]

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2 years ago

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3 years ago

18.374 to the nearest hundredth

vodka [1.7K]

HEY THERE KORI! :)

the answer is: 18.37

I hope it helps

I'm sorry if my answer didn't meet your expectations

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3 years ago

Find parametric equations for the line through point P(-1,-1,-1) and Q(-5,7,3) A. x = t + 4; y = t - 8; z = -1t - 4

Elan Coil [88]

Answer:

B) x = -4t - 1; y = 8t - 1; z = 4t - 1

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given points are P(-1,-1,-1) and Q(-5,7,3)

Let (x₁ , y₁ , z₁) = P(-1,-1,-1)

Let (x₂ , y₂ , z₂) = Q(-5,7,3)

Parametric equation of the line passing through the points (x₁ , y₁ , z₁) and (x₂ , y₂ , z₂)

$\frac{x-x_{1} }{x_{2}-x_{1} } = \frac{y-y_{1} }{y_{2}-y_{1} } = \frac{z-z_{1} }{z_{2}-z_{1} } = t$

$\frac{x-(-1)}{-5-(-1)} = \frac{y -(-1)}{7-(-1)} = \frac{z-(-1)}{3-(-1)} = t$

$\frac{x-(-1)}{-4} = \frac{y -(-1)}{8} = \frac{z-(-1)}{4} = t$

Equating each term

$\frac{x+1}{-4} = t$

⇒ x + 1 = - 4 t

⇒ x = - 4 t -1

$\frac{y +1}{8} = t$

y + 1 = 8 t

⇒ y = 8 t - 1

$\frac{Z+1}{4} =1$

⇒ z +1 = 4t

⇒ z = 4t -1

<u><em>Final answer</em></u><em>:</em>-

parametric equations for the line through point P(-1,-1,-1) and Q(-5,7,3)

are

x = -4t - 1; y = 8t - 1; z = 4t - 1

3 0

3 years ago