each time a coin is flipped, it has a 50% chance
of landing on heads and a 50% chance of
landing on tails. the coin will be flipped
3 times. what is the probability it will land on
tails all 3 times?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.