Respuesta :

meerkat18
For point (5, -12), the value of r is 13. Using x and r, you can now calculate the value of cosine which is determined by the formula:

cos (theta) = x/r

This gives an angle of 292.62 degrees or -67.38 degrees. Taking the cosine value, you get 0.385.

Answer:

-5/13

Step-by-step explanation:

for all FLVS students the answer is -5/13

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