A series of baseball games are scheduled to be played on Friday and Saturday. If it rains on either day, the game scheduled for that day will be canceled. If there is a 50\% chance of rain on Friday and a 70\% chance of rain on Saturday, what is the probability that the game will be canceled on at least one of the two days

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

26

step-by-step explanation:

- "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."