What is Sigma Notation?

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.