If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Factor a^3 - 3 + 3a^2 - a. a) (a - 1)(a + 1)(a + 3) b) (a^2 + 1)(a - 3) c) (a^2 - 3)(a + 1

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?