Which theorem justifies this conclusion? given: measure of angle 1 + measure of angle 2 = 180º measure of angle 2 + measure of angle 3 = 180º conclusion: angle 1 is congruent to angle 3?

If n = 8 and 16 • 2m = 4n - 8, then m = ?

What is the missing reason in the proof? Prove - (-y - x) - x = y - (-y - x) - x = - [-y + (-x) ] - x Definition of subtraction -[-y + (-x) ] - x = y + x - x Opposite of a sum property y + x - x = y + x + (-x) Definition of subtraction y + x + (-x) =

How do u graph y=-2x

What is the slope of a line perpendicular to a line that passes through (3,8) and (1,-4) ? A. - 1/6 B. - 1/2 C. 2 D. 6

Susan has $49.60 in his checking account. He wrote one check for $24.40 and another check for $25.49. Estimate the amount of money if does Susan's account after he wrote the checks

Michael spins a spinner 10 times. He gets the color red 6 times. How many times would he expect to get the color red if he did 30 spins

What is the slope-intercept form of the equation 4x+2y=6

X-5y=15 4x-3y=26. What's the answer?

Lauren reads in the library for 1 hour 15 minutes. She leaves the library at 3:23 pm. at what time did she arrive?

How How do you solve K+20=9k-4