12 OT 15 What is the solution to the inequality below?
2- 2x>-20
A. >12
B. x <9
C. x < 11
D. x < 10

- 2x  > -20

x  > 10

Step-by-step explanation:

Given:

2- 2x > -20

Find:

Value of inequality

Computation:

2- 2x > -20

Subtract 2 both side

- 2x  > -20

Divide -2 both side

x  > 10

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.

lol.

it's ok we all do this sometimes.

-aparri