Sam traveled 7.5 kilometers from his house to reach the highway, he travels at a an average speed of 55 kilometers per hour. which equation can be solved to find t, the time in hours Sam travels on the highway to reach a farm 22 kilometers away from his house? A.)T/55 - 7.5 =22 B.)55t +?7.5 = 22 C.)t/55 + 7.5 = 22 D.)55t - 7.5 = 22

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7

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

step-by-step explanation:

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step-by-step explanation: