Answer:
10.5 square units
Step-by-step explanation:

Answer:
24.5
Step-by-step explanation:
x2-49=0
x2=49
49/2
x=24.5
Answer: B x=+-2
Step-by-step explanation:
The Quadratic formula is -b+-
First make everything equal to 0

Then Simplify

Now use the formula where a=3, b=0, and c=-12
divided by 2(3)


then we get 12/6 and -12/6 which simplified is +-2