A university has 39,870 students. In a random sample of 180 students, 12 speak three or more languages. Predict the number of students at the university who speak three or more languages.

answer: 193

explanation:

200-7 = 193

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph