Which number line represents the solution set for the inequality -4(x + 3) <-2-2x? -7 -6 -5 -4 -3 -2 -1 0 1 2
3
4
5 6 7
-7 h -5 -4 -3 -2 -1
1
2
3
4
5
5
7
-7 -6 -5 -4 -3 -2 -1
1
3
4
5 6
7
+
-7 -6 -5 -4 -3 -2 -1
0
1
2
3
4
6

i think the correct option is the second option.

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

too hard the other guy did it

step-by-step explanation:

i think it’s a i believe