Answer:
To find critical points, take the first derivative and set it equal to zero:
f(x) = -2x^2 + 4x + 5
f'(x) = -4x + 4
-4x+4 = 0
-4x = -4
x = 1
Critical point at x = 1
Alternatively, if you mean zeros, or where the x intersects, you can use the quadratic equation.
Answer:
8 is your answer.
Step-by-step explanation:
If i think that i'm doing this right.
6x + 48
6 6 divide by 6 on both sides.
x = 8
Hope my answer has helped you!
Answer:
between step 1 and 2 he left off the 5
216/3=72, 72•5=360
147/3=49, 49•5=245
360-245=115
115 more bottles of water