Two planes, a and b, start from the same place and move in different directions, making an angle of 50° between them. the speed of plane a is
200 miles per hour, and the speed of plane b is 300 miles per hour.
the two planes are
miles apart after one hour.
reset
019 edmentum a nohts reserved

Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.