Choose the expression which correctly completes the identity:

a^2 + b^2 =
A) (a + b)^2
B) (a + b)^2- 2ab
C) (a + b)^2 ± 2ab
D) (a + b)^2 + 2ab^2

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Which of the following best describes the figure?