Assume that a pizza restaurant has a mean delivery time of 30 minutes and a standard deviation of 5 minutes that is normally distributed. What is the probability that a delivery will take less than 20 minutes? Round answer to 4 decimal places.

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Given: ac and db are diameters. m∠3=

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression