Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
A. B ? A-1
B. B = A-1
Answer: B
Mathematics
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Solve the problem.Evaluate 
at t = 9 for the function w = ey - ln x; x = t2, y = ln t.
A. 7
B. 
C. 
D. - 
Mathematics
Use the formula for 
to solve.How many ways can a committee of 6 be selected from a club with 10 members?
A. 151,200 B. 1,000,000 C. 210 D. 60
Mathematics
If AB ? BC, DC ? BC, and AB ? CD in the figure, prove that ?BAC ? ?CBD.
Mathematics
Solve the equation.3(4x + 5) = 2(x + 5)
A. -5
B. 10
C. - 
D. - 
Mathematics