Choose the proper expanded form for the exponential notation below. (-2) 3 01-2• 3) (-2.3) (-2 • 3) 0,2.313.3.) o (-2) (-2) (-2) o (2.-3) (2.-3) (2.-3)

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.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3