Barbara is trying to decide which of her two friends to invite over Saturday night for a sleepover. She writes all six of their names on slips of paper and places them in a hat. Barbara will draw one name and then draw another name. Is this an example of an independent or dependent event? A. This is an example of a dependent event because she draws a name and does not place it back into the hat
B. This is an example of a independent event because she draws a name and does not place it back into the hat.
C. This is not an independent or dependent event because she should let all six of her friends sleep over on Saturday.
D. none of the above

dependant because once she draws one, it narrows down the other draw

Step-by-step explanation:

a negative exponent is translated as follows:

so, we have

- "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."