Provide an appropriate response.The critical point of f(x, y) = x2 - 4y2 + 3z2 subject to the constraint x + 16y - 9z = 36 is
A. (3, 1, -4)
B. (4, 1, -3)
C. (1, -3, 4)
D. (4, -3, 1)
E. (-1, 4, 3)
Answer: E
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Determine whether it is true or false that the described rigid movement(s) will produce a figure with symmetry to the figure shown.Rotate 90°, then reflect about axis L
A. False B. True
Solve the problem.A driver wants to gauge the fuel efficiency of her vehicle at speeds of 30 mph and above. She notices that traveling at an average speed of 30 mph results in a rating of 35 mpg, whereas, at an average speed of 45 mph, her car rates 
Find an equation to model the gas mileage, m, as a function of average speed s mph.
A. m = 
s + 55
B. m = 
s - 15
C. m = - 
s + 55
D. m = - 
s - 15
Find all solutions of the equation in the complex number system.9x2 + 16 = 0
A. 
B. 
C. 
D. 
Solve.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 11 miles with the wind, and in the same amount of time runs 7 miles against the wind. What is the rate of the wind?
A. 5 mph
B. 22
mph
C. 1
mph
D. 2 mph