Find the inverse of the matrix.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.A musician plans to perform 5 selections for a concert. If he can choose from 7 different selections, how many ways can he arrange his program?
A. 35 B. 21 C. 16,807 D. 2520
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Solve the problem.The decay of 978 mg of an isotope is given by 
where t is time in years. Find the amount left after 
A. 144 B. 946 C. 140 D. 72
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Write the expression in the standard form a + bi.(1 - i)10
A. -32 + 32i B. -32i C. 32 D. 32 - 32i
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Identify the radicand.
A. x + 2
B. 
C. x
D. 
Mathematics