What is the length of the diagonal of the rectangle

19.2

Step-by-step explanation:

Okay, so if we slice this rectangle in half along the diagonal, we see that we can use the Pythagorean Theorem, a^2+b^2=c^2 to find the length of the diagonal. 12^2+15^2=369. The square root of 396 is 19.20937... rounded to the tenths is 19.2.

y > 1/3x

y < = -x + 4

hope this : )

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb