Geoff has a bag that contains 4 red marbles and 6 blue marbles. he chooses two marbles at random and does not replace them. what is the probability that the first marble is blue and the second marble is red? a. b. c. d.

Total number of marbles = 10

Number of red marbles = 4

Number of blue marbles = 6

Probability =

The probability that the first marble is blue =

The probability that the first marble is red = ; 9 because 1 marble has already been taken out.

Joint probability= probability of event A * Probability of event B

= =

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation:

you can use a^2+ b^2=c^2