Please help me!! If f (x) = sinx/e^x, then f’ (x) =

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.

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

1: 4 if the wew 35 surfboards at the beach how many were short boards?