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baherus [9]
3 years ago
7

A rectangle is placed around a semi circle as shown below. The width of the rectangle is 7yd. find the area of the shaded region

. Use the value 3.14 for pie and do not round your answer. Be sure to include the correct units in your answer

Mathematics
1 answer:
Nady [450]3 years ago
4 0

Answer:

21.07 yd^2

Step-by-step explanation:

The width of the rectangle is also the radius of the semicircle. The length of the rectangle is 2 radii, or 14 yd.

The area of the shaded region is the same as the area of the semicircle subtracted from the area of the rectangle.

area of shaded region = area of rectangle - area of semicircle

A = LW - (1/2)(pi)r^2

A = 14 yd * 7 yd - (1/2)(3.14)(7 yd)^2

A = 98 yd^2 - (1.57)(49 yd^2)

A = 98 yd^2 - 76.93 yd^2

A = 21.07 yd^2

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Answer:

20.30

Step-by-step explanation:

= 17 \div  \tan(40)  \\  = 17 \div 0.8391 \\  = 20.26

To the nearest tenth =20.30

<h2><em>OladipoSeun</em></h2>
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2 years ago
How much times is 4000 more than 400
Julli [10]

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4000 is 10 times greater than 400.

Step-by-step explanation:

8 0
3 years ago
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Find the area of a circle with a circumference of 18.84 units
Nata [24]

Answer:

278.773622 or 300 if rounded

Step-by-step explanation:

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6 0
3 years ago
Monica has 7.68 meters of gold wire she wants to cut into 0.96 meter log pieces. She also has 7.45 meters if silver wire she wan
Murrr4er [49]

Answer:

Monica has 3 more pieces of gold than silver after she cut all her wire

Step-by-step explanation:

Total length of gold wire Monica has= 7.68 meters

Length of each piece Monica wants to cut the wire into = 0.96 meters

Total number of pieces she can cut  = \frac{Length\ of\ wire}{length\ of \ piece}= \frac{7.68}{0.96} = 8 pieces of gold wire

Total length of gold wire Monica has = 7.45 meters

Length of each piece Monica wants to cut the wire into = 1.49 meters

Total number of pieces she can cut  = \frac{Length\ of\ wire}{length\ of \ piece}= \frac{7.45}{1.49} =5 pieces silver wire

Gold wire pieces= 8

Silver wire pieces= 5

Difference in the number of pieces = 8-5=3

Monica has 3 more pieces of gold than silver after she cut all her wire

3 0
3 years ago
Which of these numbers is composite? (Choice A) A 29 (Choice B) B 41 (Choice C) C 71 (Choice D) D 79 (Choice E) E 99
kaheart [24]

Answer: E. 99

Step-by-step explanation:

A composite number has more than two factors which means not only including 1 and itself, but at least one other.

factor of 29: 1, 29

factor of 41: 1, 41

factor of 71: 1, 71

factor of 79: 1, 79

factor of 99: 1, 3, 9, 11, 33, 99

Clearly 99 has more than two factors.

Hope this helps!! :)

Please let me know if you have any questions

3 0
3 years ago
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