There are 35 cars in the parking lot. 12 cars are black, 10 are silver, 5 are blue, 5 are white and 3 are green. If two cars are selected at random, what is the probability that both cars are black? Please write your answer in fraction form. IOO POINTS TO WHO EVER ANSWERS THIS AND BRAINEST ANSWER IF CORRECT WITH REASONING

Afixed resistor has the following color bands: orange, red, brown, gold. what is the rated resistance

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

If the null hypothesis is false and the researchers do not reject it a type 2 error has been made. true or false