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Mathematics 27 Online
OpenStudy (anonymous):

Find x to the nearest tenth

OpenStudy (anonymous):

OpenStudy (anonymous):

This will be useful: \[hyp*\cos=ady\] \[hyp*\sin=opp\] Which one do you think that we will use? Why?

OpenStudy (anonymous):

the 1st one i think. i think this question involves cosines

OpenStudy (anonymous):

Perfect! And which is the hyp in this problem?

OpenStudy (anonymous):

8

OpenStudy (anonymous):

Nice! So we have this: \[y=8*\cos (20)\] Right?

OpenStudy (anonymous):

yea

OpenStudy (anonymous):

Good! So, what do we get as final answer?

OpenStudy (anonymous):

this is the part i need help solvin

OpenStudy (anonymous):

Maybe this is useful: http://web2.0calc.com/ Plug this: 8*sin(20) What do you get?

OpenStudy (anonymous):

2.73616114660536

OpenStudy (anonymous):

Excellent! You got it! Any doubt about any step? Feel free to ask! :)

OpenStudy (anonymous):

what is this answer to the nearest tenth

OpenStudy (anonymous):

2.7?

OpenStudy (anonymous):

help me out with a couple more?

OpenStudy (anonymous):

Sure! Ask them to the community! ;)

OpenStudy (anonymous):

one's there now

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