What is the slope of the line passing through the points (-1, 7) and (4, -1)? the multiple choice options are: a: -2 b: -5/6 c: 2 d: -8/5

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.