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
The right answer is -2/3
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The answer is C. x=3 2(3)^3=54
Answer:
asnwer is learn how to do answers without needing a app
Step-by-step explanation: