Calculate the quadratic regression equation of the ordered pairs in standard form. (1, -2), (-2, 1) and (3, 6)

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')