A 20-foot ladder is used to scale a 16-foot wall. At what angle of elevation must the ladder be situated in order to reach the top of the wall? (round to the nearest tenth)

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

How many solutions does the nonlinear system of equations graphed below have?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)