The equation which the civil engineer can use to find the number of rows is 2x² - 12x = 112. Option D
<h3>How to determine the equation</h3>
Let the number of rows be x
Number of cars in each row = x - 6 = 56
Number of rows for parking lot = 2x
Then,
Number of cars for new parking lot = 2x ( x - 6 = 56)
Expand the expression,
2 ( x - 6 = 56)
2x² - 12x = 112
Thus, the equation which the civil engineer can use to find the number of rows is 2x² - 12x = 112. Option D
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X^2 - 5x + 4
-2x^2 + 10x -8
It should be 37y4+6y^2-2y^2+y-1
I think this is false because two opposite sides can't be perpendicular (creating a 90 degree angle) because opposite sides are parallel.