You dont need to help with the second one just the first one
1 answer:
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Answer:
yes it is the 10th term in the series
Step-by-step explanation:
The nth term of a geometric sequence is
= a₁
where a₁ is the first term and r the common ratio
Here a₁ = 7 and r = =
= 2 , then
= 7
Equate to 3584 and solve for n
7 = 3584 ( divide both sides by 7 )
= 512 , that is
=
Since the bases on both sides are equal, both 2 , then equate the exponents
n - 1 = 9 ( add 1 to both sides )
n = 10
3584 is the 10th term in the series