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Mathematics 24 Online
OpenStudy (anonymous):

Solve for x. Round your answer to 2 decimal places.

OpenStudy (anonymous):

OpenStudy (anonymous):

@tcarroll010 I know that sin is opp/hyp

OpenStudy (whpalmer4):

If \[\sin\theta = \frac{18}{x}\]and you know the value of \(\theta\), how could you solve that to find the value of \(x\)?

OpenStudy (anonymous):

18/x=sin x/18 = 1/sin(37) ?

OpenStudy (anonymous):

@whpalmer4

OpenStudy (whpalmer4):

Why not multiply both sides of my equation by \(x\), then divide both sides by \(\sin\theta\)? That should give you \(x\) all alone one one side, and known quantities (well, known to your calculator, at least!) on the other.

OpenStudy (anonymous):

I somewhat lost you...

OpenStudy (anonymous):

18sin(37)

OpenStudy (anonymous):

@norman7 which would be 10.83 correct?

OpenStudy (whpalmer4):

\[\sin\theta = \frac{18}{x}\]Multiply both sides by \(x\) \[x\sin\theta = \frac{18}{x}*x\]\[x\sin\theta = 18\]Divide both sides by \(\sin\theta\)\[x = \frac{18}{\sin\theta} \approx \frac{18}{0.6018} = ? \]

OpenStudy (whpalmer4):

@keeponbleeding @norman7 Come on, look at the triangle. You're solving for the hypotenuse, which has to be bigger than either of the other sides...

OpenStudy (anonymous):

my bad its 18/sin(37)

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