Ask your own question, for FREE!
Mathematics 13 Online
OpenStudy (anonymous):

help me please

OpenStudy (anonymous):

OpenStudy (anonymous):

this uses trig so give me a sec

OpenStudy (anonymous):

OpenStudy (anonymous):

sorry it is a little blurry but that is th best my camera can do

OpenStudy (anonymous):

\[\sin(\alpha) =\frac{ Opposite~side~(as~seen~from~\alpha) }{ Long~side }\] \[cos(\alpha) =\frac{ Adjacent~side~(as~seen~from~\alpha) }{ Long~side }\] \[tan(\alpha)=\frac{Opposite}{Adjecent}\]

OpenStudy (anonymous):

pick the one that applies and fill in the knowns and then you can work out the unknown.

OpenStudy (anonymous):

im so confused now

OpenStudy (anonymous):

what is it that confused you?

OpenStudy (anonymous):

everything

OpenStudy (anonymous):

hmm, ok let me draw it then

OpenStudy (anonymous):

http://oi60.tinypic.com/29y184p.jpg

OpenStudy (anonymous):

so what would be the answer

OpenStudy (anonymous):

well, 7 is adjecent to angle alpha, and angle alpha is known, and you want to know x which is the long side

OpenStudy (anonymous):

so pick the right equation from the list i gave you and fill in the values you know (the angle and the 7) and you can find x

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!