Ab = 20 cm, m∠a = 30° , and $m∠c = 45° . express the number of centimeters in the length of bc in simplest radical form.

Which of these numbers of simulations of an event would be most likely to produce results that are closest to those predicted by probability theory? 15, 20, 5, 10

Elizabeth claims that the fourth root of 2 can be expressed as 2^m since (2^m)^n = 2. find the values of m and n for the case where elizabeth's claim is true.

State one method by which you can recognize a perfect square trinomial.