Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (–1 i) (21 5i)?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events