Kareem wants to find the number of hours the average sixth-grader at his school practices an instrument each week. Which is the best way Kareem can get a representative sample?
He can randomly survey 50 boys in the school.
He can survey 30 students in the school band.
He can randomly survey 50 sixth-graders in the school.
He can survey 20 friends from his neighborhood.

this is what happens when u mess with ash! btw its c and if ash does anything, there is gonna be trouble

Step-by-step explanation:

C, He can randomly survey 50 sixth-graders in the school.

Step-by-step explanation:

Process of elimination:

A: He wants to find the average number of sixth graders, regardless of gender. Also, all of the boys may not be in sixth grade.

B: He wants to find the average time a sixth grader at his school practices, not a band student.

D: His friends may not go to his school and they may not be in sixth grade.

C has the most logical Participants are random, there are many of them, and they are all in sixth grade.

b

step-by-step explanation:

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: