Across
- 4. If n is a positive integer, then n factorial, written n!, is n * (n - 1) * (n - 2) * … * 2 * 1. The factorial of 0 is defined to be 1.
- 9. of linear inequalities A system of inequalities in two or more variables in which all of the inequalities are linear.
- 12. A measure of the strength and direction of the relationship between two variables or data sets.
- 13. formula In a coordinate plane, the distance from (x1, y1) to (x2 - y2) is d = (x2 - x1)^2 + (y2 - y1)^2.
- 14. triangle A triangle with one right angle.
- 15. In a right triangle, the cosine of angle A is the ratio of the length of the side adjacent to angle A to the length of the hypotenuse. It is the reciprocal of the secant function.
Down
- 1. the side opposite the right angle in a right triangle.
- 2. Binomials of the form a + b and a - b. The terms are the same; the signs before b are opposites.
- 3. coefficient A number r, where -1 is greater than or equal to r is greater than or equal to 1, that describes how closely the point in a scatter plot cluster around the least squares line.
- 5. A selection of a group of objects in which order is not important. The number of combinations of r objects chosen from a group of n objects is denoted nCr.
- 6. of a right triangle One of the two sides of the right triangle that form the right angle.
- 7. In a right triangle, the cosecant of angle A is the ratio of the length of the hypotenuse to the length of the side opposite A. It is the reciprocal of the sine function.
- 8. The statistical study of the relationship between variables.
- 10. Is a selection of items where order is important.
- 11. of best fit The line that comes closest to all of the points in a data set.