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bulgar [2K]
3 years ago
7

PLEASE HELP ASAP!!!

Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0
We know that
[the length of a circumference is]=2*pi*r
r=[length of a circumference]/(2*pi)

Part a)
<span>a.) Estimate the diameter of the sinkhole each week

Let
</span>first week----------> previous week
second week-----> actual week (now)

for the first week
length=75.35 m
r=75.35/(2*pi)---------> r1=12 m
Diameter=2*r---------> D1=2*12---------> D1=24 m

for the second week
length=150.42 m
r=150.42/(2*pi)---------> r2=23.95 m
Diameter=2*r---------> D2=2*23.95---------> D2=47.90 m

Part b)
<span>b,) How many times greater is the diameter of sinkhole now compared to the previous week?
[</span>diameter of sinkhole now compared to the previous week]=D2/D1
= 47.9/23.95----------> 2

the answer Part b)
the diameter of sinkhole now compared to the previous week is 2 times greater
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