Maria works for an online auto trader. She makes a piecewise function to show the cost to place an online advertisement. what is the cusp of the function C(x)( 39. When x _< 6
( 39 + 5(x-6) When x> 6

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step-by-step explanation:

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answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92