9514 1404 393
Answer:
1250 square feet
Step-by-step explanation:
If x is the length of the side perpendicular to the creek, then the third side is (100 -2x) = 2(50 -x). The area is the product of length and width:
A = x(2)(50-x)
We observe that this is a quadratic function with zeros at x=0 and x=50. The vertex (maximum) of a quadratic function is on the line of symmetry, halfway between the zeros. The value of x there is (0 +50)/2 = 25.
Then the maximum area is ...
A = (25)(2)(50 -25) = 1250 . . . . square feet
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<em>Additional comment</em>
Note that half the length of the fence is used in one direction (parallel to the creek), and half is used in the other direction (perpendicular to the creek). This 50/50 split is the generic solution to all sorts of rectangular corral problems, with or without a creek, with or without internal partitions.
Half the fence is perpendicular to the other half. (If the costs are different in different directions, then the cost is what is split 50/50.)
Answer:
a
Step-by-step explanation:
Vecayse Sjuare tmes
Answer:
A. 12 ft², 16 ft², and 20 ft²
Step-by-step explanation:
The answer is 14 because 56 divided by 4
Answer:
8x+20
Step-by-step explanation:
You can use distubetive property. Well you multiply 4 to both of the numbers. 4 times 2x equals 8x. So that will be the first part of your expression. 4 times 5 equals 20. So that will be the second part of your expression. So the answer is 8x + 20