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anonymous
 one year ago
Solve for x. Round your answer to 2 decimal places.
anonymous
 one year ago
Solve for x. Round your answer to 2 decimal places.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439335059745:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the bottom number is a 12

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So we know that cos is adj/hyp.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thus: \[\cos(51)=\frac{ 12 }{ x }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You can then switch the position of 'x' and cos(51). Giving you \[x = \frac{ 12 }{ \cos(51) }\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Plug that into your handy dandy calculator and you will get 19.07 (rounded)
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