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olga55 [171]
3 years ago
13

Please answer this correctly

Mathematics
1 answer:
Bezzdna [24]3 years ago
5 0

Answer:

185.04 mm

Step-by-step explanation:

The perimeter is 1/2 of the circumference plus the diameter

We need to go around the semicircle on the outside plus across the middle

1/2 C + d

1/2 2*pi * r  + 2r

pi *r +2r

3.14 (36)   + 2 (36)

113.04+72

185.04

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10. A 266-hp output is required for an engine. If there is a 5% loss of power, what amount of input
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Amount of input horsepower needed is 279.3 hp.

Step-by-step explanation:

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3 years ago
The fraction form of -1.6 is
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Step-by-step explanation:

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3 years ago
Ivan's chocolate bar is 64% cocoa. If the weight of the chocolate bar is 68 grams, how many grams of cocoa does it contain? Roun
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6 0
2 years ago
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HELP PICTURE IS SJOWN
jek_recluse [69]
Letter B is the answer

Number of sides (n) = 8
Apothem (a) = 18.11 units
Side (s) = 15 units

Area of Octagon = (1/2)n*a*s
A of O= (1/2)*8*18.11*15
A of O= 1086.6 units^2


Area of Square = s^2
A of S = 15^2
A of S = 225 units^2


Area of Shaded Region = A of O - A of S
A of S.R. = 1086.6 units^2 - 225 units^2
A of S.R. = 861.6 units^2
A of S.R. = 862 units^2



LETTER B
3 0
3 years ago
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