Answer:
c. 80
Step-by-step explanation:
cos x = sin(x-70)
cos x = cos [90-(x-70)]
cos x = cos (90-x +70)
cos x = cos 160 -x
x= 160-x
2x = 160
x =80
Just put these values in the place of x and solve!
The answer is 2 btw
Answer: Associative property of addition
I hope this helps :D
Answer:x greater than -9
Step-by-step explanation: