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Please answer the following. Please show work for the second question if you don't mind. Thank you!!!

layla01  May 20, 2018
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for the second one, problem 3, 

the ladder is the hypotenuse forming a right triangle with the wall and ground.

so for part a, sin is used.

sin angle = 9.2/10 

use a calculator to solve that with arcsin or sin-1

 

for part b, cos is used.

cos 75 = x/10

x= 10 cos 75

x being the ground distance

Guest May 21, 2018

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