If the combined area of the white and orange regions is 100π, what is the area of ONLY the orange region? A) 16π B) 36π C) 64π D
) 96π
2 answers:
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Answer:
32.59 (nearest hundredth)
Step-by-step explanation:
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<u>Geometric sequence</u>
General form of a geometric sequence:
(where a is the first term and r is the common ratio)
Given:
Therefore:
- a = 4
- r = 8/9
<u>Sum of the first n terms of a geometric series</u>:
To find the sum of the first 20 terms, substitute the found values of a and r, together with n = 20, into the formula: