Find the sum: (3x2 + 2x + 3) + (x2 + x + 1).
a. 3x4 + 3x + 4
b. 4x2 + 3x + 4
c. 3x2 + 4x + 4
d. 4x4 + 4x + 4

B

Step-by-step explanation:

B is the correct answer on Apex

damm bro the struggle

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.