The difference between an interrupted time series design and an equivalent time series design is that the interrupted time series design includes a event, while a noninterrupted time series design includes a treatment.

If square root x = -7, then x= -49 true or false

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]