How do you write 9,200 in scientific notation?

What could explain what happened when the time was equal to 120 minutes

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.