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Nina [5.8K]
3 years ago
7

How do I solve Cos(55)=(13/x)? I keep forgetting what to do with the x.

Mathematics
1 answer:
Rzqust [24]3 years ago
3 0
To solve this (assuming that you are using a graphing calculator of some sort) you have to first isolate x since that is what you are solving for. First, you multiply both sides by x to get x on the numerator to make it easier to solve. This would look something like this: x(Cos 55)=13
Then, to isolate x, you divide both sides by cos 55 leaving you with this: x= 13/cos55.
Then, you type 13/cos 55 (make sure your calculator is in degrees) and you get 22.66 (rounded to nearest hundredth)
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