Which of the ordered pairs is not a function?

(1) { (0,9), (9,0), (1,2), (3,4) }

(2) { (0,1), (-1,0), (1,2), (3,2) }

(3) { (2,3), (3,4), (4,5), (5,6) }

(4) { (2,3), (2,4), (4,5), (4,6) }

There are 8 books in a shelf that consist of 2 paperback books and 6 hardback books. If 4 books are selected at random without replacement, how many different combinations are there that at least one paperback book is selected? A. 40B. 45C. 50D. 55E.

6 x 1 x 5 x 1/10 as a decimal

a triangle has it side as r is 53 degree which is hypotenuse t opposite which is 14 s is adjacent find r and s

I took too many pills counting up the bills Molly in my cup i can't tell you how it feel

Which of the following sets could be the sides of a right triangle? o (2, 3, [10] (3, 5, 134) {5, 8, 12}

Four friends split equally a lunch bill of $36.96 plus 20% tip. how much did each person pay?

What is 433.38 in word form

Rosita and Garth are saving up for a vacation, and begin with a certain amount saved each. If Rosita works 5 hours, she will have $128. If she works 7 hours, she will have $164. If Garth works 3 hours, he will have $124.

Which situation could not represent a proportional relationship

1/6 Solve the following equation: 2 (w - 1) = 10