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kherson [118]
3 years ago
7

Pls answer 31 and 32. Show all your work.

Mathematics
1 answer:
Veronika [31]3 years ago
5 0
31. diameter is twice radius. volume cylinder = πr²h
112π = π(7)²h
112π/(49π) = h
 16/7 = h
32. volume of sphere is (4/3)πr³
if r = 1 the volume just = (4/3)π

both answers are C
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Answer:

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Step-by-step explanation:

We have the angle in standard post has a sine ratio of

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This means the opposite side length of the corresponding right triangle is 9 units and the hypotenuse is 41 units.

Using Pythagoras Theorem, the adjacent side length can be found using:

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This implies that:

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x =  \pm \sqrt{1600}

x =  \pm40

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Since we are in the second quadrant, the cosine ratio is negative;

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3 years ago
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Step-by-step explanation:

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3 0
2 years ago
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