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olasank [31]
2 years ago
8

Use a calculator to find the angle measure to the nearest degree for cos-1 (0.5) 45 Pts!

Mathematics
2 answers:
umka2103 [35]2 years ago
8 0

Step-by-step explanation:

no calculator req

cos 60 is 0.5

so cos inverse of 0.5 os 60°

Amiraneli [1.4K]2 years ago
6 0

\\ \tt\hookrightarrow cos^{-1}(0.5)

\\ \tt\hookrightarrow cos^{-1}\left(\dfrac{1}{2}\right)

\\ \tt\hookrightarrow 60°

Fact about cosine(cos)

\\ \tt\hookrightarrow cos\theta=\dfrac{Base}{Hypotenuse}

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6 0
3 years ago
Rosa works due north of home. Her husband Juan works due east. They leave for work at the same time. By the time Rosa is 7 miles
polet [3.4K]
<span>This is a right triangle problem. c^2 = a^2 + b^2
Let b = 7 mi (Rosa's distance from home)
Let a = the east leg (Juan's distance from home
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(a+1)^2 = a^2 + 7^2

FOIL (a+1)(a+1)
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Combine like terms
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a = 

<span>a = 24 mi, Juan's distance from home

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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