Each of 7 students reported the number of movies they saw in the past year. Here is what they reported. 13, 8, 18, 19, 13, 14, 12
Find the mean number of movies that the students saw.
If necessary, round your answer to the nearest tenth.

13.9

Step-by-step explanation:

The mean of a set of numbers is the sum divided by the number of terms

muyb ajo

step-by-step explanation:

jegosu

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option