3 years ago

Can y’all help me on this ?

Mathematics

1 answer:

kipiarov [429]3 years ago

8 0

The answer is the second one I believe if I’m wrong sorry

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How many terms are there in a geometric series if the first terms is 2, the common ratio is 4, and the sum of the series is 2,73

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The sum of n terms of a geometric series is given by
$S_{n}=a_{1}\dfrac{r^{n}-1}{r-1}$

Substituting the given numbers, you have
$2730=2\dfrac{4^{n}-1}{4-1}\\\\2730\dfrac{3}{2}=4^{n}-1\\\\4096=4^{n}\\\\\dfrac{\log(4096)}{\log(4)}=n=6$

There are 6 terms in the series.

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Step-by-step explanation:

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Set up the equations to determine s and t.

Viefleur [7K]

Answer:

t° = 11° s°= 71°

Step-by-step explanation:

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