85+2x+x-10=180
3x+75=180
3x=105
x=35
Answer:
B
Step-by-step explanation:
recall that any radical expression has real solutions only if A is not negative. (otherwise you will have imaginary solutions)
hence in this case we have
,
for real solutions, 8x must be ≥ 0,
since 8 is a positive number, x must be ≥ 0 (answer)
It’s #4
Angle 1 and angle 2are supplementary angles.