Solve the problem.A runner is competing in an 8-mile race. As the runner passes each miles marker (M), a steward records the time elapsed in minutes (t) since the beginning of the race, as shown in the table. What is the runner's average speed over the first 3 miles? Round your answer to four decimal places.
A. 0.0862 miles/min
B. 14.3266 miles/min
C. 0.0649 miles/min
D. 0.0698 miles/min
Answer: D
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Use the Pythagorean Theorem to find the missing length in the right triangle. Use a calculator to find square roots, rounding, if necessary, to the nearest tenth.
A. 3.5 cm B. 4 cm C. 2.6 cm D. 5 cm
Find the slant asymptote, if any, of the graph of the rational function.f(x) = 
A. y = x + 
B. y = 9x
C. y = x + 9
D. no slant asymptote
Write a matrix equation equivalent to the system of equations. 9x - 7y = 9-4x - 5y = 4
A. 
= 
B. 
=
C.
  = |
D.
=
Solve the problem.The table shows the number of new AIDS cases (in thousands) in the U.S. in five consecutive years.
Let x = 1 correspond to 1988 and let f(x) be the number of new AIDS cases (in thousands) in the U.S. in year x. Using the points 
and 
the following linear function is obtained to model the data: 
Compare the number of new AIDS
cases given by the model in 1990 with the actual number of new AIDS cases that year. How accurate is the model? What will be an ideal response?