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vagabundo [1.1K]
2 years ago
7

A repairman charges $55 for a home visit plus $45 per hour for the time he spends making repairs. How many hours did he work if

he was paid $212.50 for a home visit? Round to the nearest tenth.
Mathematics
2 answers:
levacccp [35]2 years ago
6 0

Answer:

3.5

Step-by-step explanation:

svlad2 [7]2 years ago
3 0

Answer:

3.5 hours

Step-by-step explanation:

First, we can subtract 55 from 212.50 which equals 157.5.

Then we divide 157.5/45 which is 3.5

He worked 3 hours and 30 minutes

3.5 hours

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geniusboy [140]

Answer:

sin(2\alpha )=2(\frac{5}{12})(\frac{12}{13})=\frac{10}{13}\\cot(2\alpha ) = \frac{16511}{18720}

Step-by-step explanation:

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sin(2\alpha )=2(\frac{5}{12})(\frac{12}{13})=\frac{10}{13}\\cos(2\alpha )=cos^2(\alpha)-sin^2(\alpha)\\cos(2\alpha )=(\frac{12}{13})^2-(\frac{5}{12})^2=\frac{16511}{24336}\\cot(2\alpha)=\frac{cos(2\alpha)}{sin(2\alpha)}=\frac{\frac{16511}{24336}}{\frac{10}{13}}=\frac{16511}{18720}

8 0
3 years ago
Three circular arcs of radius units bound the region shown. Arcs and are quarter-circles, and arc is a semicircle. What is the a
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Answer:

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Step-by-step explanation:

8 0
2 years ago
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