Multiply.-7x2(-6x7 - 12x3)
A. 126x2
B. 42x9 - 12x3
C. 126x9 + 126x5
D. 42x9 + 84x5
Answer: D
Mathematics
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A. perimeter: 60 mi; area: 675 sq mi B. perimeter: 120 mi; area: 675 sq mi C. perimeter: 675 mi; area: 120 sq mi D. perimeter: 120 mi; area: 1350 sq mi
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Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 1
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Find the derivative of the function.y = 
A. y' = - 
B. y' = - 
C. y' = 
D. y' = - 
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Decide whether or not the matrix is a probability vector.
A. No B. Yes
Mathematics