The graph has rotational symmetry about the point ( , ) The graph has rotational symmetry about the point ( , )

Which math sentence can be used to determine if the triangle is a right triangle?

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.

Which of the following is correct interpretation of the expression -4+13