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svp [43]
2 years ago
15

Find the circumference of a circle whose area is equal to 64π^2​

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
7 0

Answer:

14 6/7 is the circumference

Step-by-step explanation:

you first of all look for the radius using the formulae multiply both sides by the reciprocal of 22/7

7/22 ×22/7r=64×7/22=224/11{2 4/11)

2 4/11 is the radius

cir =2×22/7×2 4/11

2×22/7× 26/11=104/7

==== =14 6/7

all i can do but am not sure sorry

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Find the 73rd term of the arithmetic sequence -28, -41, -54, ...
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Answer:

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Step-by-step explanation:

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The arithmetic sequence formula is a(n) = a(1) + d(n - 1), where d is the common difference and -28 the first term.

Then, in this case, a(n) = -28 - 13(n - 1), and

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