Part B In part A you simplified the expression 4+ 16 - (4)5) What other type of expression does this expression remind you 2 of? What concepts have you learned about in the past that complex numbers can help with?

The value √10 and √15 are plotted on the number line

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.

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how