The liquid base of an ice cream has an initial temperature of 86°C before it is placed in a freezer with a constant temperature of -20°C. After 1 hour, the temperature of the ice-cream base has decreased to 58°C. Use Newton's law of cooling to formulate and solve the initial-value problem to determine the temperature of the ice cream 2 hours after it was placed in the freezer. Round your answer to two decimal places.

55/i dont know i do it for the points

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.