With coordinates x(1, 1), y(5, 6), and z(6, 2) is a right triangle

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.

Solve the equation for x by graphing.2^x – 4 = -4^x + 4