Answer:
x = 3
Step-by-step explanation:
The formula for the axis of symmetry is x = -b/(2a).
Here, a = -2 and b = 12, so the axis of symmetry is
-12
x = --------- = 3 => x = 3
2(-2)
Now, a whole, will be 15/15 or 1 whole.
now, the sprinkler does 1/15 of the lawn in 1/3 of an hour, how long will it be to do the whole 15/15?
Answer:
9
Step-by-step explanation:
9x²-0x-4
=9x²-4
=(3x-2)(3x+2) is the factor form of 9x²-0x-4
Solve for x:
3x-2=0
Add 2 to each side
3x-2+2=0+2
3x=2
Divided 3 to each side
3x/3=2/3
x=2/3
Or
3x+2=0
Subtract 2 to each side
3x+2-2=0-2
3x=-2
Divided 3 to each side
3x/3=-2/3
x=-2/3. Hope it help!
Answer:
3,600 square ft
Step-by-step explanation:
Area = length x width
A = 75 x 48
A = 3,600 square ft