Solve for (7-2i)+(8+3i)
2 answers:
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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.
Answer:
24 carbohydrates
Step-by-step explanation:
Represent Snack bars with S and Milks with M.
So, we have:
and
Required: Solve for M and S
Convert the given expressions to mathematical expressions:
--- (1)
--- (2)
Multiply the first equation by 2
--------- * 2
--- (3)
Subtract (1) from (3)
Solve for S
Substitute 13 for S in (2)
Solve for 4M
Solve for M
1 glass of milk and 1 snack bar = S + M