Anumber is randomly selected from {80, 81, 82, 83, 84, 85, 86}.
a is represented by the event that the number picked is less than 84.
what is the probability of the complement of event a?

a. 27
b. 37
c. 47
d. 57

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

Solving algebraic equations 2m+3=11

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