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Ksivusya [100]
3 years ago
15

A rectangular parking lot has length that is 9 yards less than twice its width. If the area of the land is 221 square yards, wha

t are the dimensions of the land?
Mathematics
1 answer:
alisha [4.7K]3 years ago
3 0

Answer:

The width is 13, the length is 17


Step-by-step explanation:

You have to write an expression to represent the area of the rectangle. The width can be w, and the length can be 2w-9. Since the parking lot is a rectangle, you multiply the length by the width to get your area. w(2w-9) is 2w^2-9w=221. The only value of w that satisfies this equation when substituted is 13, so that is your width. 2(13)-9 is 26-9 is 17, so the length is 17.


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Answer:

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Step-by-step explanation:

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The first term is easy enough: (3 x 4) = 12

For the second term, when exponent terms have the same "base" (in this case, d), the exponents can be added together. So, the second term yields d^(-4 + 4) = d^0. Any number raised to the zero power equals 1, EXCEPT for the sole number of zero. 0^0 is undefined, but any other number raised to the zero power equals 1.

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Answer:

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