Answer:
a) see below
b) 40x20 meters
Step-by-step explanation:
Write down what you know:
- The area of the enclosure is length*width, so

- The length of the fencing is 80 meters, so

Now we have to combine these two equations above, and get rid of y in the process.
First rewrite the second as:

Then substitute for y in the first:

b) To maximize A, find the zero of the first derivative:

So y = (80-40)/2 = 20 meters.
The correct answer to determine the change in he account is by:
C. Subtracting last Monday's account balance from this Monday's account balance to find that the change in the balance is -$24.10.
Hope This helped :)
He owes more than $36 because -$36 is the same thing as owing $36 but without the - so if his balance is less than $-36 then he owes more than $36
Answer:
105
Step-by-step explanation:
One way to get this is by multiplying 15 by seven because the key says that one cm equals 7 km
2. 4 is the solution to line a but NOT for line b