Dregg guessed the answers to three multiple-choice questions on a test. If each question had 5 different choices, how many different answer combinations were there?

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.

c

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at least i think its

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

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