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Basile [38]
2 years ago
11

Find the volume of the cone.

Mathematics
2 answers:
almond37 [142]2 years ago
7 0

Answer:

V = 803.8 cm^3

Step-by-step explanation:

h = 12cm

r = 8cm

V = \frac{1}{3} \pir^{2}h

V =  \frac{1}{3} \pi(8)^{2} (12)

V = 4 \pi (64)

V = 803.84

jok3333 [9.3K]2 years ago
6 0

Answer:

800

Step-by-step explanation:

V=\pi r^{2} \frac{h}{3}

V=\pi 8^{2} \frac{12}{3} \\V=\pi (64)(4) = 256\pi

256π = 804.247719319

To the nearest tenth: 800

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7 0
3 years ago
What is 38.86 rounded to one decimal place
emmasim [6.3K]
38.9 
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3 0
3 years ago
Read 2 more answers
Explain the steps needed to determine the value of the expression shown below be sure to provide the correct value of the expres
inn [45]

Answer:

-3/2

Step-by-step explanation:

In the picture attached, the complete question is shown.

The expression is:

\frac{ \frac{1}{2} }{ \frac{-2}{5}} + \frac{-1}{4}

You can rewrite the first term, expressing the division as a multiplication, that is, inverting the fraction in the denominator, as follows:

\frac{1}{2} \times \frac{-5}{2}+ \frac{-1}{4}

\frac{-5}{4} + \frac{-1}{4}

The addition of a negative fraction is simply the subtraction by that fraction:

\frac{-5}{4} - \frac{1}{4}

\frac{-5 - 1}{4}

\frac{-6}{4}

Which can be simplified dividing by two both numerator and denominator:

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8 0
2 years ago
Provide reasons for the proof. Given line h is parallel to line k. line j is perpendicular to line h. Prove line j is perpendicu
dusya [7]

Answer: Provided.


Step-by-step explanation: We are given two lines 'h' and 'k' which are parallel to each other. Also, there is another line 'j' that is perpendicular to line 'h'.

We are to prove that line 'j' is perpendicular to line 'k'.

Let, m, n and p be the slopes of lines 'h', 'k' and 'j' respectively.

Now, since line 'h' and 'k' are parallel, so their slopes will be equal. i.e., m = n.

Also, lines 'h' and 'j' are perpendicular, so the product of their slopes is -1. i.e.,

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Hence, we can write from the above two relations

n×p = -1.

Thus, the line 'j' is perpendicular to line 'k'.

Proved.


8 0
3 years ago
What is 12.25 as a fraction
Finger [1]

Answer:

\large\boxed{12.25=\dfrac{49}{4}}

Step-by-step explanation:

12.\underbrace{25}_{2}=\dfrac{1225}{1\underbrace{00}_2}=\dfrac{1225:25}{100:25}=\dfrac{49}{4}\\\\12.25=12+0.25=12+\dfrac{25}{100}=12+\dfrac{25:25}{100:25}=12+\dfrac{1}{4}\\\\=\dfrac{12\cdot4}{4}+\dfrac{1}{4}=\dfrac{48+1}{4}=\dfrac{49}{4}

8 0
3 years ago
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