Use a tree diagram to display the sample space for choosing two different digits from the number 7,156. The order in which the digits are selected is important. For example, choosing 7 and then 1 is not the same selection as choosing 1 and then 7.

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

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?

Which of the following contains a variable?