what is the approxomite circumference of a circle with a radius of 30 inches.
Use 3.14 = pi
reward will Be GIVEN, HELP ME PLEASE
A.47.1
B.94.2
C.62.8
D.188.4
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jimthompson5910 (jim_thompson5910):
Use the formula
C = 2*pi*r
where r = radius
OpenStudy (anonymous):
yes
jimthompson5910 (jim_thompson5910):
so what do you get
OpenStudy (anonymous):
94.2
jimthompson5910 (jim_thompson5910):
C = 2*pi*r
C = 2*3.14*r ... replace pi with 3.14
C = 2*3.14*30 ... replace r with 30
C = ???
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OpenStudy (anonymous):
188.4
jimthompson5910 (jim_thompson5910):
yep
OpenStudy (anonymous):
1 more
jimthompson5910 (jim_thompson5910):
ok
OpenStudy (anonymous):
ok, hold on
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OpenStudy (anonymous):
a rectangle has an area of 25 square centimeters and a length of 10 centimeters.
What is the width of the rectangle?
A.2.5
B.7.5
C.15
D.35
jimthompson5910 (jim_thompson5910):
A = LW
25 = 10*W
solve for W
OpenStudy (anonymous):
15
jimthompson5910 (jim_thompson5910):
no
jimthompson5910 (jim_thompson5910):
divide both sides by 10 to isolate W
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OpenStudy (anonymous):
2.5???? idk
jimthompson5910 (jim_thompson5910):
yep you got it
OpenStudy (anonymous):
hurray, one more?
OpenStudy (anonymous):
wat is the appoxomite area of the fiqure?
OpenStudy (anonymous):
|dw:1363728604307:dw|
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jimthompson5910 (jim_thompson5910):
is this a circle? or an oval?
if possible, please post a screenshot of the problem
OpenStudy (anonymous):
oval
jimthompson5910 (jim_thompson5910):
can you post a screenshot?
OpenStudy (anonymous):
no srry
jimthompson5910 (jim_thompson5910):
I'm not sure exactly if this is the exact figure (and if the dimensions are correct)