Answer:
70 and 110
Step-by-step explanation:
The two angles add to 180 degrees since they form a straight line
2x+10 +3x+20 =180
5x+30 = 180
Subtract 30 from each side
5x+30-30 =180-30
5x = 150
Divide by 5
5x/5 =180/5
x = 30
The left angle is 2x+10 = 2*30+10 = 60+10 =70
The right angle is 3x+20 = 3*30 +20 = 90+20 = 110
Answer: 
Step-by-step explanation:
Use the equation
to calculate the length of the segment.
units
Answer:
Step-by-step explanation:
y + 4 = -3(x - 1)
y + 4 = -3x + 3
y = -3x - 1
Answer:
B)
Step-by-step explanation:
Answer:
I think it's "inverse property of addition"
hope this helps :3