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zloy xaker [14]
3 years ago
8

The base of a prism has an area of 27 square inches and a perimeter of 36 inches. The surface area of this prism is 144 square i

nches. Which equation below could be used to find h, the height of this prism, in inches?
A 27h = 144
B 36h = 144
C 2(27) + 36h = 144
D 2(36) + 27h = 144
Mathematics
1 answer:
77julia77 [94]3 years ago
5 0

The base of a prism has an area of 27 square inches and a perimeter of 36 inches. The surface area of this prism is 144 square inches. Which equation below could be used to find h, the height of this prism, in inches?

The base of a prism has an area of 27 square inches and a perimeter of 36 inches. The surface area of this prism is 144 square inches. Which equation below could be used to find h, the height of this prism, in inches?

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When the ball is first dropped, it falls h feet. On the first bounce, it rebounds 0.81h feet, which means on the second "drop" it must travel 0.81h feet again. On the second bounce, the ball rebounds 0.81(0.81h)=0.81^2h feet, and on the third drop falls the same distance. And so on.

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\text{upward: }\displaystyle 0.81h+0.81^2h+\cdots=\sum_{n=1}^\infty 0.81^nh

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\displaystyle\sum_{n=0}^\infty r^n=1+\sum_{n=1}^\infty r^n=\frac1{1-r}

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Starting with a height of h=16 means the total distance is about 152.42 ft.
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