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vodomira [7]
3 years ago
13

A community park is shaped like a trapezoid with a height of 30 yd, a top base of 25yd,and a bottom base of 33yd. The park has a

circular fountain whose radius is 4yd. What is the area of the park without the fountain?
Mathematics
1 answer:
Likurg_2 [28]3 years ago
6 0

Answer: 819.73 yd²

<u>Step-by-step explanation:</u>

A_{trapezoid} = \frac{b_{1}+b_{2}}{2}*h

                       = \frac{25+33}{2}*30

                       = \frac{58}{2}*30

                       = 29 * 30

                       = 870

A_{circle} = \pi r^{2}

                  = π(4)²

                  = 16π

                  ≈ 50.27

Area of the park = A_{trapezoid} - A_{circle}

 = 870 - 50.27

= 819.73

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Step-by-step explanation:

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a. By binomial theorem, we have;

The probability that exactly 2 last longer than 1,000 hours, P(Y = 2) is given as follows;

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The probability that exactly 2 last longer than 1,000 hours, P(Y = 2) = 0.1536

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