F(x)=x5-6x4-15x3+50x2+54x-84 lies between x=2.4 and x=2.5. use the intermediate value theorem to isolate the x value of this solution to within 0.01

i think 1: 2

step-by-step explanation:

the answer is two. hope this !

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.