Find the LCM of the expressions.7x, xy
A. 8x2y
B. 6xy
C. 7x2y
D. 7xy
Answer: D
Mathematics
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Find the second derivative.y = 5x3 - 7x2 + 5
A. 14x - 30 B. 20x - 14 C. 14x - 20 D. 30x - 14
Mathematics
Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis
A. 9? B. 12? C. 6? D. 3?
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. ?
Mathematics
Find the indicated matrix.Let A = [-1 2] and B = [1 0]. Find 3A + 4B.
A. [2 2] B. [-3 4] C. [-1 4] D. [1 6]
Mathematics