Lydia graphed ADEF at the coordinates D (-2, -1), E (-2, 2), and F (0,0). She thinks ADEF is a right triangle. Is Lydia's assertion correct? •Yes; the slopes of EF and DF are opposite reciprocals.

•Yes; the slopes of EF and DF are the same.

•No; the slopes of EF and DF are not opposite reciprocals.

•No; the slopes of EF. and DF are not the same.

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

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.

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125