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Physics 16 Online
OpenStudy (destinymasha):

A 30-foot ladder leans against a building. If cos B = 0.2, what is the value of x?

OpenStudy (anonymous):

|dw:1367286767842:dw| You have not given with the picture.. you will have to use the definition of cosine

OpenStudy (destinymasha):

OpenStudy (destinymasha):

there

OpenStudy (anonymous):

what is cosine ratio?

OpenStudy (destinymasha):

adjacent/ hypotenuse

OpenStudy (anonymous):

what is your hypotenuse?

OpenStudy (anonymous):

the ladder

OpenStudy (destinymasha):

im assuming 30?

OpenStudy (anonymous):

yes. it is 30 so, \[\cos B={x\over 30}\]

OpenStudy (destinymasha):

er, dont know

OpenStudy (anonymous):

look at your question once more

OpenStudy (destinymasha):

0.2 ?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

plug it in and solve for "x"

OpenStudy (destinymasha):

6

OpenStudy (anonymous):

yes

OpenStudy (destinymasha):

thanks [:

OpenStudy (king.void.):

o-o

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