Answer: These ARE congruent to each other.
Step-by-step explanation: Do you see the ''tick marks?'' They both have 1 set of 2, and 1 set of 1. If that makes sense. They also have a "angle" in one of their acute angles.
7. D
8. D
9. D
10.C
for 7 & 8 you use the equation

your points are (3,8) & (9,5)
so you plug the numbers in
y2= 5
y1=8
x2=9
x1=3
you subtract them get a fraction and that is your slope
9 & 10
use the equation

plug you numbers in for y1 and x2 m is your slope plug it in and that is your equation
Answer:
x=-5
Step-by-step explanation:
2x+10=0
2x=-10
x=-5
Answer:
0.5958
Step-by-step explanation:
Turn the percentage into a decimal.
3% -> 0.03
Multiply.
19.86 * 0.03 = 0.5958
Best of Luck!