Answer:
the third one
Step-by-step explanation:
x^2 is always non-negative, so -3x^2 will always be non-positive. You can eliminate any tables with positive values for y.
A + b = d+c
<span>a - b = e - c </span>
The b and c cancel out.
<span>2a = d+e </span>
<span>a = (d+e)/2 </span>
Answer:
See explanation
Step-by-step explanation:

2x - 20 = x + 15
x = 35
Now plug x in:
2*35 - 20 = 50 degrees

Since 3 does not equal 6, therfore the answer is no solution.