40 points , answer and explain, . you!
which expression is arranged by decreasing powers of x for the given polynomial? 6x^2 - 2x^4+4+3x

a. -2x^4+3x+6x^2+4

b.6x^2+4+3x-2x^4

c. -2x^4+6x^2+3x+4

d.4+3x+6x^2-2x^4

Step-by-step explanation:

c is the final answer! : )

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.