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2 years ago

A cone has a diameter of 12 cm and a height of 9 cm. Find the volume.

Mathematics

2 answers:

Natali [406]2 years ago

7 0

Answer:

339.3 cm. squared

Step-by-step explanation:

Elza [17]2 years ago

4 0

Volume of a cone = pi r square h/3
Pi (6)^2 * 9/3= 108pi

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The curves y = √x and y=(2-x) and the Cartesian axes form two distinct regions in the first quadrant. Find the volumes of rotati

makkiz [27]

Answer:

Step-by-step explanation:

If you graph there would be two different regions. The first one would be

$y = \sqrt{x} \,\,\,\,, 0\leq x \leq 1 \\$

And the second one would be

$y = 2-x \,\,\,\,\,, 1 \leq x \leq 2$ .

If you rotate the first region around the "y" axis you get that

$A_1 = 2\pi \int\limits_{0}^{1} x\sqrt{x} dx = \frac{4\pi}{5} = 2.51$

And if you rotate the second region around the "y" axis you get that

$A_2 = 2\pi \int\limits_{1}^{2} x(2-x) dx = \frac{4\pi}{3} = 4.188$

And the sum would be 2.51+4.188 = 6.698

If you revolve just the outer curve you get

If you rotate the first region around the x axis you get that

$A_1 =\pi \int\limits_{0}^{1} ( \sqrt{x})^2 dx = \frac{\pi}{2} = 1.5708$

And if you rotate the second region around the x axis you get that

$A_2 = \pi \int\limits_{1}^{2} (2-x)^2 dx = \frac{\pi}{3} = 1.0472$

And the sum would be 1.5708+1.0472 = 2.618

7 0

3 years ago

postnew [5]

12-3=9 they switch up and it still equals the same thing

5 0

2 years ago

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What is the slope of a line that is parallel to the line shown on the graph?

SSSSS [86.1K]

Answer:

I'm 98% sure its c. 1/4

Step-by-step explanation:

in order for a line to be parallel to another they have to be on different y intercepts but have the same slope causing them to never intersect.

the slope of the graph on the line is 1/4 because of rise over run

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2 years ago

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A recent poll taken by the national ice cream industry shows that 32% of the population names vanilla as its favorite ice cream

lina2011 [118]

Answer:

±0.06

Step-by-step explanation:

The range is 0.28 - 0.16 = 0.12. So half of that is 0.06.

3 0

2 years ago

6 / 32 Simplify a) 4p + 2p – 3p b) 9s- 5s + 2s-S c) 8t + 3r - 76 - 9r

Charra [1.4K]

Answer:

a.3p

b 5s

c 2r -76 this can be the answer

3 0

2 years ago

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