Megan conducts a probability experiment. She uses 12 cards. Three are black, 7 are white, and 2 are gray. She randomly picks one of the 12 cards from the box, looks at the color and replaces the card. She repeats this 48 times. How many times can Megan expect to pick a black card?

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet