Which expression is NOT equivalent to the others? a. 5+ (-7)
b. 5 - 7
c. 7 - (-5)
d. -7 + 5

Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.

Parabolas y=−2x^2 and y=2x^2 +k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?