A plane makes a loop in the air modelled by the function h(t)= 3 cos(pi/16 t) +5 where h is in km and t is in seconds. If the plane makes only one full loop, what time(s) are the instantaneous rate of change 0?

The hypotenuse of a 45 -45 -90 triangle measure 7 square root 2 units

Answers; a) 135 degree’s b) 30 degree’s c) 180 or 0 degree’s d) 90 degree’s

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.