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Sladkaya [172]
3 years ago
9

I don’t understand how you would figure out the number of hours. Please help!

Mathematics
1 answer:
photoshop1234 [79]3 years ago
8 0
13.50 x 40 = 540

661.50 - 540 = 121.50

121.50 ÷ 20.25 = 6

40 hours + 6 hours = 46 total hours
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Thur                   5                                     68

Fri                      6                                      86

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The general form of the regression model is a\sin (bx+c)+d.

Using the sinusoidal regression calculator, we get that,

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c = 1.337

d = 81.684

That is, the sine regression model is 33.690\sin (0.887x + 1.337) + 81.684.

Thus, option A is the sine regression model for the given data.

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