What is the solution to the system of equations?

7

11

16

15

you add them

and then plot them

on the graph

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

-1/4 > -1 2/3. -1/4 is greater than -1 2/3 because it is closer to 0 on the number line.