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Shtirlitz [24]
3 years ago
12

osha requires a ladder to meet the ground at 75 degree angle in order to function as safely as possible. of you need the ladder

to reach a ledge 20 feet up a vertical wall, how long does the ladder need to be?
Mathematics
1 answer:
VMariaS [17]3 years ago
8 0
Draw a right triangle with a right angle and a 75 deg angle at the bottom.
The hypotenuse is the length of the ladder.

sin A = opp/hyp

sin 75 = 20/hyp

hyp = 20/sin 75 = 20.7

Answer: 20.7 ft
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Answer:

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Step-by-step explanation:

Given the 2 equations

y = 2x + 3 → (1)

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Substitute y = 3x + 1 into (1)

3x + 1 = 2x + 3 ( subtract 2x from both sides )

x + 1 = 3 ( subtract 1 from both sides )

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Substitute x = 2 into either of the 2 equations for corresponding value of y

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