Match the expressions to their solutions or equivalents.

1 .
1/2
The GCF of 28 and 60.
2 .
0
(- ) + (- )
3 .
-1/3
- ÷
4 .
-1/2
Solution of 0.5 x = -1.
5 .
-2
Solution of m = 0.
6 .
4
-4 + 5
7 .
-4
-2 ÷ 4
8 .
-1
Not a solution of -4 < x .

0.85% : )

step-by-step explanation:

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

mrbilldoesmath!

answer: a parabola

steps:

(x-1)(x+4)   = x(x+4) - 1(x+4) = (x^2 + 4x) - (x+4)

                = x^2 +4x -x -4   = x^2 +3x -4

which is a parabola

mrb