2.) A ball rolls down a ramp with a slope of 2/3
At one point the ball is 10 feet high, and at another point
the ball is 4 feet high, as shown in the diagram below.
110 ft
4 ft
x ft
What is the horizontal distance (x), in feet,
high to 4 feet? Show work and/or explain.
ball travelled as it rolled down the ramp from 10 feet

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

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.