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3 years ago

Find the volume of the cylinder. Round your answers to the nearest tenth If necessary. Use 3.14 for pie

Mathematics

1 answer:

Rudiy273 years ago

3 0

Answer:

volume of cylinder can be measured by using formula πr^2h..

Here,

radius(r)=4/2=2 inches

height(h)=7 inches

therefore,

volume(v)=3.14×2^2×7

=87.92 in^3

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Help find the missing lengths round to nearest tenth

Mama L [17]

Answer:

Step-by-step explanation:

Theta is 21 degrees

x is the adjacent side
8 is the opposite side
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SOH - CAH - TOA

Since the opposite side is given and we need to find the length of the adjacent side, we can use tangent to solve for x.

$tan 21=\frac{opposite}{adjacent} \\tan 21 =\frac{8}{x} \\0.384 =\frac{8}{x} \\0.384x =8 \\x=\frac{8}{0.384} \\x=20.84$

Since the opposite side is given and we need to find the length of the hypotenuse, we can use sine to solve for y.

$sin 21=\frac{opposite}{hypotenuse} \\sin21 =\frac{8}{y} \\0.358 =\frac{8}{y} \\0.358y=8 \\y=\frac{8}{0.358} \\y=22.32$

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