1) The assistant principal at the girl’s school wants to determine which type of snack to give out to the entire Girls School population during their next assembly. Which survey method would produce the best representative sample? a. survey every fifth person who goes outside during lunch period
b. survey all the students on the debate team
c. survey every tenth student entering the school one morning
d. survey all the students who go to the mall one weekend

C

Step-by-step explanation:

Due to the fact that you are surveying more people and that those people are differentiated there will be a more representative answer rather than a biased one.

c

Step-by-step explanation:

you have a higher number therefore more results.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.