2cos (90 +x) - sin(360-x) 3 sin (90-x) - cos (180-x)​

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Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

The measures of the angles in △abc are given by the expressions in the table. angle measure angle a 65° angle b (3x−10)° angle c (2x)∘ find the value of x. then find the m∠b and m∠c.