9. A tunnel for an amusement park ride has the shape of a regular hexagonal prism with dimensions shown. The prism
has a volume of 3,572.1 cubic meters. Can two 8-meter cars
connected by a 3 meter connector pass through the tunnel
at the same time? Explain.
7 m
8.1 m

We just started the introduction into circles and i have no idea how to do this.

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).