We are given the equation:
c = 500 + 1100 x – 100 x^2
Solve for x given the value of c = 2300
Rearrange and substitute:
- 100 x^2 + 1100 x + 500 = 2300
Divide everything by -100:
x^2 – 11 x – 5 = - 23
x^2 – 11 x = - 18
Completing the square:
(x – 11/2)^2 = - 18 + (11/2)^2
x – 11/2 = ±3.5
x = 2, 9
<span>So x is 2 or 9</span>
Answer:
It's B
Step-by-step explanation:
Because I randomly guessed and that was the answer.
0.034 would be the correct answer.
1 centimeter=10 milimeters
so ur answer should be 40 millimeters per year
Answer:
maybe bc your not good at it, get a tutor or ask your teacher for extra help!
Step-by-step explanation: