Aright triangle abc is shown. use any trigonometric ratio, find the measure of angle a to the nearest degree.

A= 62 deg

Step-by-step explanation:

tan A = CB / AB

tan A = 15 / 8

 (use calculator)

A = 61.93 deg

= 62 deg (nearest degree)

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.