Which of the following functions are quadratic functions? (Select all that apply.)

A. f (x) = 2x - 4

B. f (x) = 3 - x2

C. f (x) = 3x2 - x - 6

D. f (x) = 3 x2

A teacher wants to award prizes for 1st, 2nd, 3rd, 4th and 5th in the class of 30. In how many ways can the prizes be awarded (assume no two students tie) ?

Daer has 14 mittens and Elkin has 121. How many mutt nation does Daer has more than Elkin?

You are designing a container in the shape of a cylinder. The radius is 6 inches. You want the container to hold at least 324π cubic inches. What is the least possible height of the container?

Name a number that can be evenly divided by 6 and and by 7

The volume of a fish tank is 30 cubic feet. If the density is 0.3 fish over feet cubed, how many fish are in the tank? Select one: a. 100 b. 10 c. 9 d. 3

Which of the following is proved by utilizing deductive reasoning? postulates undefined terms theorems definitions

14. What is the sum of 1/9,2/3, and 5/18? O A. 12/9 OB. 19/18 c. 8/30 D. 4/15

Draw two possible rectangles for each perimeter. Find the area 20 units

Rick says to find 2x5 he can use counting by 5s: 5,10,15,20,25 Explain what he did wrong

The sum of six times a number, and 6, is equal to five times the number