Answer:
The answer is C: cos(x)= 10/15.
Step-by-step explanation:
ed2020
Use a calculator. I would walk you through it, but it should be simple.
Answer:
1.x=15
2.<A=29
Step-by-step explanation:
(2x-1)+(3x+9)+(6x+7)=180
2x-1+3x+9+6x+7=180
11x+15=180
11x=180-15
11x=165
x=165/11
x=15
2.<A=2x-1
<A=2*15-1
<A=30-1
<A=29