(4x+5)(4x-5)
= 16x^2 - 25
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
Use the point-slope formula y-y1=m(x-x1) to find the equation of the line.
Equation: y= 1/2x+5/2
Answer:
8
Step-by-step explanation:
pythagorean theorem
Answer:
-2.8
Step-by-step explanation:
make the first equation equal to just x and then sub it into the other equation