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Luba_88 [7]
2 years ago
11

What is the first term of the geometric sequence presented in the table below?

Mathematics
1 answer:
Rina8888 [55]2 years ago
8 0
176 = a1 * r^4
704 = a1 * r^6

dividing:-

r^2 = 706/174 =  4   so r = +/- 2

a1 =  176 / 2^4 =  176/16 = 11

So 11 is the first term 
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Sat                     7                                      120

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

Using the sinusoidal regression calculator, we get that,

a = 33.690

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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.

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6 0
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