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Mathematics 17 Online
OpenStudy (anonymous):

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

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

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

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 :)

OpenStudy (anonymous):

that would be c

OpenStudy (bookworm14):

YES!

OpenStudy (anonymous):

right??

OpenStudy (anonymous):

thx

OpenStudy (bookworm14):

welcome :)

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