The slope of the red line would also be -3 because the lines are parallel, and parallel lines have the same slope.
Answer:
x = 5
Step-by-step explanation:
x² + (2x+2)² = (2x+3)²
x² + 4x² + 8x + 4 = 4x² + 12x + 9
x² - 4x - 5 = 0
(x - 5)(x + 1) = 0
x = -1 This can be discounted as the answer because you cannot have a negative length
answer: x = 5
Answer:
TE=11
Step-by-step explanation:

(you can't use -7 cuz that would make TE a negative distance and that's a nono)

Answer:
X=1
Step-by-step explanation:
6x+2=9x-1
-6x on both sides
2=3x-1
+1 on both sides
3=3x
/3 on both sides
1=x
Flip
X=1
Answer:
c
Step-by-step explanation:
if the sides are in proportion set the proportions
6.21/ 5.4 = x/2.6; cross multiply
5.4*x = 6.21 *2.6; divide by 5.4
x= 2.99