What is the slope of a line that is perpendicular to the line whose equation is ax+by=c? A. c/b
B. b/a
C. −b/a
D. a/b

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

If np3 /nc2 = 6, find the value of n