Determine the value of x is

How to use order of operation in 20 divide by 4 multiply 5 = 1

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

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