Use the simplex method to solve the linear programming problem.Maximizez = 4x1 + 2x2subject to:x1 + 5x2 ? 14 2x1 + 3x2 ? 12withx1 ? 0, x2 ? 0
A. Maximum is 56 when x1 = 14, x2 = 0
B. Maximum is 24 when x1 = 6, x2 = 0
C. Maximum is 12 when x1 = 6, x2 = 0
D. Maximum is 14.6 when x1 = 2.5, x2 = 2.3
Answer: B
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The bar graph below shows the recorded high temperatures in Little City for the indicated months. 
In which month was the recorded temperature closest to 0°C?
A. January B. October C. February D. March
Find the x- and y- intercepts. If there are no intercepts write "No x-intercept" or "No y-intercept".5x + 3y = 15
A. (-3, 0), (0, -5) B. (3, 0), (0, 5) C. (3, 0), (0, -5) D. (5, 0), (0, 3)
Use Bayes' rule to find the indicated probability.The incidence of a certain disease on the island of Tukow is 4%. A new test has been developed to diagnose the disease. Using this test, 91% of those who have the disease test positive while 4% of those who do not have the disease test positive (false positive). If a person tests positive, what is the probability that he or she actually has the disease?
A. 0.438 B. 0.487 C. 0.91 D. 0.856
Solve the problem.The formula v = 
can be used to estimate the maximum safe velocity v, in miles per hour, at which a car can travel along a curved road with a radius of curvature r, in feet. To the nearest whole number, find the maximum safe speed for a curve in a road with a radius of curvature of 450 feet.
A. 34 mph B. 21 mph C. 53 mph D. 13 mph