Expres a reflection about the vertical axis and a dilation with a scale factor of 6 in matrix notation. prove that it
produces the desired reflection by using matrix multiplication

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.

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

How many solutions does the nonlinear system of equations graphed bellow have?