Suppose that the people in a certain city are catching cold. It is observed that after one week, 40% of the people who were sick are still sick. Of the people who were well, 30% are sick after one week. Set up the 
stochastic matrix with columns and rows labeled S and W that describes this situation.
A. 
B. 
C. 
D. 
Answer: D
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Find the circumference of the circle. Use 3.14 or 
for ? as indicated.Use 3.14 for ?.
A. 58.09 mi B. 232.36 mi C. 116.18 mi D. 4298.66 mi
Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. x-axis B. x-axis, origin C. x-axis, y-axis, origin D. Origin
Solve.A plane flying with a tailwind flew at a speed of 420 mph, relative to the ground. When flying against the tailwind, it flew at a speed of 310 mph. Graph the system to find the speed of the plane in calm air and the speed of the tailwind.
A. Speed of plane: 375 mph Speed of tailwind: 45 mph B. Speed of plane: 45 mph Speed of tailwind: 375 mph C. Speed of plane: 55 mph Speed of tailwind: 365 mph D. Speed of plane: 365 mph Speed of tailwind: 55 mph
Solve the equation.3(x - 8) - 3 = 2 + 2x
A. - 29 B. - 13 C. - 25 D. 29