Find the sum of the first 10 terms of the given sequence.-3,-15,-75,375,-1875
1 answer:
Answer: -7324218
Step-by-step explanation: This is a geometric series because we can see the sequence is constantly decreasing by multiples of 5.
5 is being multiplied.
Sum of geometric progression formula:
Sn = sum of n terms
a = first term in sequence
r = common ratio/multiple
n = number of terms
Therefore: = -7324218
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A = (3.14)(
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A = 3.14 x 76 = 5,776 square meters
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Rectangle; A = lw
A = 98 x 76
A = 7,448 square meters
Put the two semicircles together to form a circle; A = π
A = (3.14)(
A = 3.14 x 76 = 5,776 square meters
7,448 + 5,776 = 13,224 square meters