2 years ago

Help Please! Find the value of x for which ABCD must be a parallelogram.

Mathematics

1 answer:

Pepsi [2]2 years ago

4 0

Answer:

Step-by-step explanation:

We know that the opposite sides of a parallelogram are equal so:

25x+1=7x+37

18x=36

x=2

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zvonat [6]

Answer: $46x^2+73x+15$

Step-by-step explanation:

The area of a rectangle can be calculated with the formula:

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l: the length of the rectangle.

w: the width of the rectangle.

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Knowing that the dimensions of the wall are $(6x+7)$ by $(8x+5)$ , its area is:

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$A_m=(x+4)(2x+5)\\\\A_m=2x^2+5x+8x+20\\\\A_m=2x^2+13x+20$

Then the area of the remaining wall after the mural has been painted is:

$A_{(remaining)}=A_w-A_m\\\\A_{(remaining)}=48x^2+86x+35-(2x^2+13x+20)\\\\A_{(remaining)}=48x^2+86x+35-2x^2-13x-20\\\\A_{(remaining)}=46x^2+73x+15$

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Step-by-step explanation:

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3 years ago