What is the sum? (x^2+ 2x + 3)+(5x^2 + x)
A 5x^2 – 3x + 3
B 6x^2 - 2x + 3
C 6x² -x+3
D 6x^2+ 3x + 3

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

c

step-by-step explanation:

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

-1   1/6.   you dont subtract the denominators

step-by-step explanation: