The area, a, of a rectangle is 120x2 + 78x – 90, and the length, l, of the rectangle is 12x + 15. which of the following gives the width, w, of the rectangle? a.) 9x + 4 b.) 10x – 19 c.) 10x – 6 d.) 8x – 6

If the area of the reactangle is given with the equation 120x^2 + 78x – 90, and tle length is given with L=12x+15, then the width can be calculates using the relationship between the area , the length and the width.

A=L*W

In our case, 120x^2 + 78x – 90=(12x+15)*W

W=(120x^2 + 78x – 90)/(12x+15)

W=10x-6

were is the equation

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value