Help me lol A. (x, y) → (-x, y)
B. (x, y) → (x, y - 4)
C. (x, y) → (x, y-7)
D. (x, y) → ( x,- y)

its 8

step-by-step explanation:

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

he answer is x=1x3 because x=1 to x=3

i believe it’s 165 because if u add 137 and 58 u get 195 and then subtract that from 360 and there’s ur answer