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sergeinik [125]
3 years ago
14

A ramp 18 ft long rises to a platform. The bottom of the platform is 13 ft from the foot of the ramp. Find x, the angle of eleva

tion of the ramp. Round the answer to the nearest tenth of a degree.
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
8 0

Answer:

The answer to your question is: Ф = 43.95°

Step-by-step explanation:

Data

length = 18 ft

distance bottom to is 13 ft

x = angle = ?

Formula

cos Ф = opposite side / hypotenuse  

Process

cos Ф = 13 ft / 18 ft                   substitution

cos Ф = 0.72                            simplify

Ф = cos⁻¹ (0.72)

Ф = 43.95°                                result

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Answer:

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Step-by-step explanation:

For this problem, imagine the standard form, which is:

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Now if this doesn't look familiar, it's actually a <u>systems of equations</u> using the a, b, and c elements as your three variables! If you simplify the equations:

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Something unique just happened. We have already defined what ' c ' is!

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