Which set of ordered pairs represents a function? A) {(6,4), (2, 3). (9, -1). (0,0). (6,-4)}

B) {(-5, 1), (-5, 8). (-5, -2), (-5, -5). (-5, 10)}

C) {(-2, 3), (0, 3), (5,3), (8,3), (12. 3)}

D) All of the above

C because any repeating x values (The first number) indicated it is not a function. C is the only one with no repeating x values. The y values are fine to repeat though

Step-by-step explanation:

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

20%

step-by-step explanation: