Find the determinant of the given matrix. 

A. 2ab 
B. a2 - b2
C. 0 
D. a2 + b2

Answer: B

Mathematics

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Write the given number in the situation as an integer.The team gained 84 yards in rushing during the first quarter.

A. 84 yards B. -84 yards

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Find dy/dx by implicit differentiation.x1/3 - y1/3 = 1

A. - 2/3
B. 2/3
C. 2/3
D. - 2/3

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Find the present value. Round to the nearest cent.To get $2000 after 7 years at 4% compounded semiannually

A. $1515.75 B. $1519.84 C. $1546.07 D. $484.25

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