In the figure below, ABCD is a trapezoid. E lies on line AD, and angle measures are as marked. What is the
measure of angle CDB?

Given: Angle BDA and Angle DBC are Alt-Int angles due to AD parallel to BC.
55 deg
80 deg
25 deg
30 deg

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

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

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?