Find the remainder when f (x) = -2x3 + 15x2 – 20x + 9/ x - 6.

- 3

Step-by-step explanation:

       _ -2x²_+ 3x__-2

x - 6 |   -2x³ + 15x² – 20x + 9

       | - (-2x³ +12x²)

       |                3x² - 20x

       |              - (3x² - 18x)

       |                        - 2x  + 9

       |                       -( - 2x +12)  

       |                                   - 3

you'll just earn points here

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.