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soldi70 [24.7K]
3 years ago
8

The perimeter of a rectangular field is 320320 yd. the length is 2020 yd longer than the width. find the dimensions.

Mathematics
1 answer:
hichkok12 [17]3 years ago
6 0
The sum of length and width is half the perimeter, 160 yd. The length is the average of the sum and difference of dimensions:
.. (160 +20)/2 = 90
Then the width is 160 -90 = 70

The rectangular field is 70 yd by 90 yd.
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Step-by-step explanation:

For finding real solutions to cubic equations and those of higher degree, I find a graphing calculator to be useful. The problem can be cast in the form ...

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Answer:

4i + 22

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7 0
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Read 2 more answers
Which function models the area of a rectangle with side lengths of 2x - 4 units x - 1 units
elena-s [515]

The choices are missing but we can find the answer from the given information

Answer:

The function which models the area of the rectangle is A(x) = 2x² - 6x + 4

Step-by-step explanation:

The formula of the area of a rectangle is A = l w, where l is its length and w is its width

∵ The length of a rectangle is (2x - 4) units

∵ The width of the rectangle is (x - 1) units

- Use the formula of area to find its area

∵ A = l w

∴ A = (2x - 4)(x - 1)

Let us multiply the two brackets

∵ (2x - 4)(x - 1) = (2x)(x) + (2x)(-1) + (-4)(x) + (-4)(-1)

∴ (2x - 4)(x - 1) = 2x² + (-2x) + (-4x) + 4

- Add the like terms

∴ (2x - 4)(x - 1) = 2x² + (-6x) + 4

∴ (2x - 4)(x - 1) = 2x² - 6x + 4

Write A as a function of x

∵ The area of the rectangle is A(x)

∵ The area of the rectangle is 2x² - 6x + 4

∴ A(x) = 2x² - 6x + 4

The function which models the area of the rectangle is A(x) = 2x² - 6x + 4

6 0
3 years ago
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