Which of the following is equal to the rational expression when x = 5 or -3? x^2+x-6/x^2-2x-15 A. X-6/x-5
B. X+3/c-5
C. X-2/X+3
D. X-2/x-5

C. X-2/X+3

Step-by-step explanation:

(4/x) + (4/y) / (16/x2y2) is where we start. I will factor out

1/(16/x2y2).

(1/(16/x2y2)) (64xy2 + 4/y) = (x2y2/16)(64xy2 + 4/y)

I need to factor out a 4/y from there.

(x2y/4)(16xy + 1) = x2y (16xy + 1) / 4

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation: