If the cosine of an angle is -0.23 and its sine is 0.93, what is the cosine of its reference angle?

What is the measure of the smallest angle in the diagram? 15 29 32 45

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

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?