Evaluate the expression x + y for the given values of the variables.x = 6, y = -7
A. 1
B. -1
C. -13
D. 13
Answer: B
Mathematics
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = 4t
A. 4t
B. 
C. 
D. 
Mathematics
Solve by substitution and check. x + 5y = 24 -3x + 4y = -15
A. (8, 4) B. No solution C. (-9, 4) D. (9, 3)
Mathematics
Identify the most appropriate test to be used to determine whether the series 
converges or diverges.
?
A. ?Limit Comparison Test with
B. ?Ratio Test
C. Direct Comparison Test with
D. Root Test
E. Alternating Series Test
Mathematics
Plot the complex number and find its absolute value. ? -5 + 2i ?
A. ?
?
B. ?
?
C. ?
?
D. ?
?
E. ?
?
Mathematics