The area of a trapezoid is given by the formula A= h/2 (a+b). solve the formula for b. A) b= hA/2 + a
B) b= hA/2 - a
C) b= 2A/h + a
D) b= 2A/h - a​

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

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.