A rancher has a square cow pen with side length x. He deicdes to change the shape of the pen while still using

the same amount of fencing materials. The equation

(x + 10)(x - 10) = 300 represents the relationship

of the new side lengths (in feet) of the pen and its area

(in square feet).

a. If 300 represents the area of the new cow pen, what

do the expressions (r + 10) and (x - 10) each

represent?

d.192

step-by-step explanation:

12*16=192

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100

x = 12

y = 1

for the points!