Which difference is about 10? A. 33 . 2 − 28 . 4 B. 70 . 9 − 58 . 7 C. 42 . 5 − 16 . 8 D. 65 . 7 − 65 . 6

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?