Answer:
3 15/17 hours
Step-by-step explanation:
Sue's rate of completion is ...
1/6 order per hour
Jim's rate of completion is ...
1/11 order per hour
Assuming they can appropriately divide the work, their total rate of completion will be ...
(1/6 + 1/11) = (11+6)/(66) = 17/66 . . . . order per hour
The time for one order is the inverse of that: 1/(17/66) ...
66/17 hours per order = 3 15/17 hours per order
Working together, it will take Sue and Jim 3 15/17 hours to fill the order.
The perimeter for this case is given by:
Substituting values we have:
The area is given by:
Writing the area based on a variable we have:
We derive the area to obtain the maximum of the function:
We equal zero and clear x:
Then, the other dimension is given by:
Finally the maximum area is:
Answer:
The length and width of the plot that will maximize the area are:
The largest area that can be enclosed is:
Answer:
-5
Step-by-step explanation:
2(-5 +3)^2 = 8
2(-2)^2 =8
2(-4) = 8
8 = 8