What is the difference

a
b
c
d

D. x^2 +3x -20)/(x+3)(x-5)(x+7)

Step-by-step explanation:

The given expression is  

The denominators can be factorable.

= x / (x + 3)(x -5)  - 4/(x-5)(x + 7)

Here (X+3)(x -5)(x + 7) is the Least Common Divisor.

=

= [x^2 + 7x -4x -20] / (x+3)(x-5)(X+7)

= (x^2 +3x -20)/(x+3)(x-5)(x+7)

Answer D. x^2 +3x -20)/(x+3)(x-5)(x+7)

Hope this will helpful.

Thank you.

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.