4. In a lot, there are 2000 electric bulbs. Among these bulbs, 1800 are good and 500 and bought from company B. out of the good bulbs, 300 are bought from company B. a bulb is randomly selected and found that it is bought frora company B what is the probability that it is a good bulb? 13 marks)

Bring the fraction a/a-4 to a denominator of 16-a^2

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.