9. (08.03 LC) Two cards are drawn without replacement. What information do you need in order to calculate the probability that
the second card is a red king, given that the first card is a black queen? (1 point)
a. The probability that the second card is a red king
b. The probability of both a red king and a black queen
C. The probability that the first card is a black queen
d. The probability that the second card is a black queen
a and b
O
O
a and d
O b and c
O cand d

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."