Determine if the sequence is arithmetic. if it is, find the common difference. 1) -1,-2,-6,-24 2) -20,-10,0,10 3) 30,38,46,54 4) 37,33,29,25

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

The function f(x)= -(x+5)(x+1) is down. what is the range of the function?

What ratio is proportional to 18/21