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expeople1 [14]
3 years ago
6

A ladder leans against the side of a house. The angle of elevation of the ladder is 70 when the bottom of the ladder is 16ft fro

m the side of the house. Find the length of the ladder. Round your answer to the nearest tenth.
Mathematics
1 answer:
makkiz [27]3 years ago
3 0

46.78

Step-by-step explanation:

you divide 16 by the cos of 70 and it turns out to be 46.78

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Serggg [28]

Answer:

\large\boxed{y=76.3359\ cm\approx76.3\ cm}

Step-by-step explanation:

Use cosine:

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Substitute:

\dfrac{73}{y}=0.9563             <em>convert the decimal to the fraction</em>

\dfrac{73}{y}=\dfrac{9563}{10000}          <em>cross multiply</em>

9563y=730000           <em>divide both sides by 9563</em>

y=\dfrac{730000}{9563}

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Answer:

Option 3 is the correct answer.

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