1) If the mean is 15.5 and the standard deviation is 2.5, Label b, c, d, e, and f

Multiply. write your answer in simplest form. 3/8 x 5/7

Can you me find the missing length. i attached an image.

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y