Researchers claim that 90% of people are left-handed. Suppose the researchers claim is true. Mrs. Reyes has a statistics class with 30 students what is the probability that exactly 25 of them are left-handed?

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180