the times per workout an athlete uses a stair climber are normally distributed with a mean of 20 minutes and standard devation of 5 minutes what percebtage of athletes use the stair climber for less than 18 minutes

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

Write a story that matches with the expression 42x-5 pls hurry

The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees