Answer:

Step-by-step explanation:
This is because you use Pythagorean theorem. a^2 + b^2 = c^2.
The equation would be 8x +3 + -19. Substitute your given answers in. Your answer would be B. Negative 2
Answer:
Correct
Step-by-step explanation:
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-19 + (-12) = 7
Remove Parentheses
( -a ) = -a
= 19 - 12
Subtract The Numbers
19-12 = 7
My only guess is a^2 + b^2 = c^2