There are a van and a bus transporting students on a student camping trip. Arriving at the site, there are 3 parking
spots. Let represent the van and represent the bus. The chart shows the different ways the vehicles can park.
a.
In what percent of the arrangements are the vehicles separated by
an empty parking space?

b.
In what percent of the arrangements are the vehicles parked next to
each other?

c.
In what percent of the arrangements does the left or right parking space remain vacant?

1; 35 is the ratio

step-by-step explanation:

answer: 1 + 1 = 11

step-by-step explanation:

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.