The discriminant is

which is 0.
Since the discriminant is 0, there is only one real solution.
I think it’s 4rd graph because it’s increasing constantly
Answer:
c = 15 ft
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + 12^2 = c^2
c^2 = 225
c = √225
<u>c = 15 ft</u>
2 x (49.5 - 37.5)
2 x 12
24
Hope this helps :)
Answer:
551
Step-by-step explanation:
I used a calculator.