When dividing complex numbers, why do you need to multiply the numerator and denominator by the complex conjugate of the denominator?

Anumber cube is rolled and a coin is tossed. the number cube and the coin are fair. what is the probability that the number rolled is less than 4 and the coin toss is tails?

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.

The function f(x) is shown in this graph the function g(x)=6x