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3 years ago

5

To find the volume of a cylinder, we multiply the area of the base by the height. What other figures use the same formula?

1 answer:

dedylja [7]3 years ago

6 0

I think the 2nd one and the last one

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Find the value of Sin^-1(tan π/4).

zvonat [6]

Answer:

D

Step-by-step explanation:

1. Remind that

$\tan \left(\dfrac{\pi }{4}\right)=1.$

Here you can use trigonometric table to find the value of $\tan\left(\dfrac{\pi}{4}\right)$ , or you can remind that $\dfrac{\pi}{4}=45^{\circ}$ and $\tan45^{\circ}=1$ because special right triangle 45°-45°-90° is isosceles (with congruent oppposite and adjacent legs) and the ratio between the opposite leg and adjacent leg is equal to 1.

2. Now

$\sin^{-1}\left(\tan\left(\dfrac{\pi}{4}\right)\right)=\sin^{-1}1=\dfrac{\pi}{2},$

because

$\sin\dfrac{\pi}{2}=1.$

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3 years ago

2. Michael made 10 pies. He cut each pie into 8 pieces.<br> How many pieces of pie?

Zolol [24]

Answer:

Step-by-step explanation:

80

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3 years ago

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You really enjoy cooking and are planning on having friends over for dinner. You

Sonja [21]

Answer:For B I have 42 minutes.

Step-by-step explanation:

First 4 people x 8 minutes per person = 32.

Plus the additional 10 minutes = 42 minutes

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3 years ago

Evaluate: 9 ÷ 3 + 4x6 Your work

OverLord2011 [107]

Answer:

27

Step-by-step explanation:

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A ships triangular signal flag has a base of 8 inches and an area of 64 square inches. What is the height of the signal flag

Firlakuza [10]

A = (1/2)bh
64 = (1/2)(8)h
16 = h
The height is 16 inches

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3 years ago