Solve the equation x2 + 4x - 11 = 0 by completing the square. Fill in the values of a and b to complete the solutions.

Can some one me with this math problem?

If f(x)= 3x+6 which of the following is the inverse of f(x)

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