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irina1246 [14]
1 year ago
10

Quick Fix Inc. repairs bikes. The company’s revenue is modeled by the function R(h)=220h-160 for the every h hours spent repairi

ng bikes. The company’s overhead cost is modeled by the function C(h)=20h^2-400.
After how many hours does the company break even?
Mathematics
1 answer:
Aneli [31]1 year ago
4 0

Answer:

7

Step-by-step explanation:

3+4

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Volgvan

Answer:

P(\bar X>530)=1-0.808=0.192

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

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