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EASY MATH QUESTION, EARN POINTS!

EASY MATH QUESTION, EARN POINTS!-example-1

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g43=79.5 I’m pretty sure
User Yan Foto
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2 votes

Answer:

g43 = 79.5

Explanation:

geometric sequence = ar^(n-1), where a is first term and r is common ratio.

g23 = ar^(23-1) = ar^22 = 16.

g28 = ar^27 = 24.

now do g28/g23:

(ar^27) / (ar^22) = 24/16,

a^(1-1) r^(27-22) = 24/16,

a^0 r^5 = 24/16,

r^5 = 24/16 = 1.5,

r = (1.5)^1/5 ≈ 1.084.

ar^22 = 16,

a = 16/(r^22) ≈ 2.687.

so g43 = ar^42 ≈ (2.687)(1.084)^42 = 79.5

User Prasath K
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