What is the solution set to the inequality 5(x-2)(x + 4) >0? {xl x>-4 and x <2}

{x|X<-4 or x>2}

n

O {x| X <-2 or x>4}

O {x|x>-2 or x <4}

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.

13cm

step-by-step explanation:

(apex)

i think the length is 12 and the width is 17

explanation:

step-by-step explanation: