A wheel has a radius of 15 cm. Approximately how far does it travel in 4 revolutions?
A. 94.2 cm
B. 47.1 cm
C. 376.8 cm
D. 188.4 cm
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OpenStudy (anonymous):
@Bookworm14
OpenStudy (anonymous):
plz help
OpenStudy (anonymous):
i don't have a lot of time either
OpenStudy (bookworm14):
hmmm, this one seems a littel difficult give me a sec to think lol
OpenStudy (anonymous):
srry I couldn't help
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OpenStudy (anonymous):
it is okay, can u help now
OpenStudy (anonymous):
@saynabahmed13
OpenStudy (anonymous):
yes but I need help witha nother question
OpenStudy (anonymous):
A video store surveys people to find out what new videos to offer. In the survey, employees question every fifth person who leaves the store. Is that method going to result in a representative sample?
A.
Yes. The store wants to know its customers' opinions.
B.
No. The sample only includes people leaving the video store.
C.
Yes. The sample is representative of all the people in the city.
D.
No. The sample is not representative of all the people in the city.
OpenStudy (anonymous):
i am gonna wait until i am done, @Bookworm14 is helping me right now
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OpenStudy (anonymous):
I think it is a
OpenStudy (anonymous):
wait no
OpenStudy (anonymous):
i missed the 4 revoltions
OpenStudy (bookworm14):
okay so im pretty sure that you need to find the circumference which is 2 *15 *pi
this equals 94.2 then if it goes around 4 times, then multiply by 4 =?
OpenStudy (bookworm14):
your on the right track take your time :)
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