15 pts + brainliest to right/best answer

3 (x + 5) (x - 4)

Step-by-step explanation:

Factor the following:

3 x^2 + 3 x - 60

Factor 3 out of 3 x^2 + 3 x - 60:

3 (x^2 + x - 20)

The factors of -20 that sum to are 5 and -4. So, x^2 + x - 20 = (x + 5) (x - 4):

 3 (x + 5) (x - 4)

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )