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vovikov84 [41]
4 years ago
14

A plumber charges a $75 flat fee for jobs lasting up to an hour and $30 for each hour of labor after the first hour. which expre

ssion models the cost of a job lasting h hours, when h is greater than 1?
Mathematics
2 answers:
larisa [96]4 years ago
6 0

Answer:

75+30h

Step-by-step explanation:

professor190 [17]4 years ago
4 0

Answer:

75+30h

Step-by-step explanation:

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Consider right triangle with vertices B - base of the hill, S - top of the statue and Y - you. In this triangle angle B is right and angle Y is 13.2°. If h is a height of the statue, then the legs YB and BS have lengths 77 ft and 16+h ft.

You have lengths of two legs and measure of one acute angle, then you can use tangent to find h:

\tan 13.2^{\circ}=\dfrac{\text{opposite leg}}{\text{adjacent leg}} =\dfrac{16+h}{77}, \\ \\ 0.2345=\dfrac{16+h}{77},\\  \\ 16+h=0.2345\cdot 77=18.0565,\\ h=18.0565-16=2.0565 ft.

Answer: the height of the statue is 2.0565 ft.

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You put the whole number on top of 1, it doesnt change its value. then you simplify across like in a butterfly only if needed then you multiply across from left to right.

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