Let's solve your equation step-by-step.
−7x=−2x2+15
Step 1: Subtract -2x^2+15 from both sides.
−7x−(−2x2+15)=−2x2+15−(−2x2+15)
2x2−7x−15=0
Step 2: Factor left side of equation.
(2x+3)(x−5)=0
Step 3: Set factors equal to 0.
2x+3=0 or x−5=0
x= or x=5
Answer:
Hope this helps
Step-by-step explanation:
I believe it is 9ft
5.5
The answer is A
A * 2 = 1/2πr^2 * 2
2A / π = πr^2 / π
=
So, the answer is A because r =