Which equation represents a parabola that has a focus of (0 0) and a directrix of y = 2

1. x^2 = - (y-1)
2. x^2 = -4y
3. x^2 = -y
4. x^2 = -4 (y-1)

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

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.