Solve the problem.Find any local extrema (maxima, minima, or saddle points) of 
given that 
and 
A. Saddle point at 
B. Local maximum at 
C. Local minimum at 
D. Local maximum at 
Answer: C
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Use the problem-solving strategy for applications of linear equations to solve the application problem.A health food store sells a trail mix for $8 per pound and premium cashews for $15 per pound. The manager wishes to make a 350-pound 
mixture that will sell for $9 per pound. How many pounds of each should be used?
A. 175 lb of trail mix 175 lb of cashews B. 200 lb of trail mix 150 lb of cashews C. 50 lb of trail mix 300 lb of cashews D. 300 lb of trail mix 50 lb of cashews
Convert as indicated. When necessary, round to the nearest tenth of a degree.91° F to degrees Celsius
A. 195.8° C B. 32.8° C C. 106.2° C D. 82.6° C
Determine if the relation is a function.
A. Function B. Not a function
Solve using Gauss-Jordan elimination. 6x + 4y = 0 4x + 2y = -2
A. (3, -2) B. (-2, -3) C. (-2, 3) D. No solution