Solve using Cramer's rule.
A. (5, 3)
B. (3, 5)
C. (-5, 3)
D. (-3, -5)
Answer: B
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Find all local extreme values of the given function and identify each as a local maximum, local minimum, or saddle point.
A. f(-2, -6) = -34, saddle point B. f(2, -6) = -50, local minimum C. f(-2, 6) = 110, local maximum D. f(2, 6) = 94, saddle point
Provide an appropriate response.If f(x) ? 0 on the interval [a, b], then 
representsi) the area to the right of the y-axis between y = a and y = b.ii)the area above the x-axis between x = a and x = b.iii) the area below the x-axis between x = a and x = b.
A. None of the above is correct. B. Only i is correct. C. Only ii is correct. D. Either ii or iii could be correct.
Is the following correspondence a function?Domain: All students attending Laughlin Community CollegeCorrespondence: Each student's Social Security NumberRange: A set of Social Security Numbers
A. Yes B. No
Solve the problem.An average score of 90 for 5 exams is needed for a final grade of A. John's first 4 exam grades are 79, 89, 97, and 95. What range of scores on the fifth (and last) 100-point exam will guarantee John an A in the course?
A. 90 to 100 B. 95 to 100 C. 99 to 100 D. 85 to 100