Answer:
20
Step-by-step explanation:
Use your fingers.
Hold down the first finger on your left hand, nine fingers remain up. The answer is 9
For two hold down the second finger on your left hand. On the left is one finger standing, and on the right are 8 fingers standing. The answer is 18
This pattern works for everything up to ten. Then you remember 9 x 11 is 99. And 9 x 12 is 108
Find
R(V)
- p(x)×x
- x(-3/2x+112)
- -3/2x²+112x
Now
Find vertex x coordinate
Put in equation
- y=-3/2(-37.3)²+112(-37.3)
- y=-2086.9-84+4177.6
- y=$6264.6
- y=$62.64M
As a is negative parabola is facing downwards hence vertex is minimum .
So minimum value is $62M which is far more than given .