Mathematics: The area of a rectangle is (4x² - 100) and its width is (x + 5). find the length of the rectangle

The area of a rectangle is (4x² - 100) and its width

Ответ:

eskarletche8

08.11.2021

The value of k is 10.From the coordinate given (0, 10) and (4, 0), we can see that the y intercept and x intercept of the graph is 10 and 4 respectively

Given the line that passes through points (0, k) and (4,0) and has a slope of –2.5, we need to get the value of "k

The formula for calculating the slope of a line is expressed as:

$m=\frac{y_2-y_1}{x_2-x_1}\\-2.5 = \frac{0-k}{4-0}\\-2.5=\frac{-k}{4} \\Cross \ multiply\\-2.5 \times 4 = -k\\-10 = -k\\k = 10$

Hence the value of k is 10.

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From the coordinate given (0, 10) and (4, 0), we can see that the y intercept and x intercept of the graph is 10 and 4 respectively

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The area of a rectangle is (4x² - 100) and its width is (x + 5). find the length of the rectangle

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The area of a rectangle is (4x² - 100) and its width is (x + 5). find the length of the rectangle​

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The area of a rectangle is (4x² - 100) and its width is (x + 5). find the length of the rectangle