Answer:
The equation could be used to find the dimensions of the window would be: 
Step-by-step explanation:
as
- The length of a rectangular window is 5 feet more than its width, w.
and
- The area of the window is 36 square feet.
So it means
Therefore, the equation could be used to find the dimensions of the window would be:
Answer:
em i think the answer would be 44
Answer:
ok
Step-by-step explanation:
9+10=21
7 7/9
chamge 11 2/3 to improper faction and multiply <span />
Answer:
Step-by-step explanation:
Given the Total revenue R(x) = 2x
Cost C(x) = 0.01x²+0.3x+30 where;
x = 30 and dx/dt = 9units per day.
Rate of change of revenue dR/dt = dR/dx • dx/dt
dR/dt = 2dx/dt
dR/dt = 2(9) = $18
Rate of change of revenue with respect to time is 18dollars/day.
Rate of change of cost dC/dt = dC/dx • dx/dt
dC/dt = (0.02x+0.3)dx/dt
dC/dt at x = 30 and dx/dt = 9 will give;
dC/dt = {0.02(30)+0.3}×9
dC/dt = (0.6+0.3) × 9
dC/dt = 0.9×9
dC/dt = $8.1
Rate of change of cost with respect to time is 8.1dollars/day
Profit = Revenue - Cost
Profit = 18-8.1
Daily Profit = $9.9
