Use a graphing utility to find the inverse, if it exists, of the matrix. Round answers to two decimal places.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.How long will it take a sample of radioactive substance to decay to half of its original amount, if it decays according to the function A(t) = 700e-0.181t, where t is the time in years? Round your answer to the nearest hundredth year.
A. 36.19 years B. 40.02 years C. 126.70 years D. 3.83 years
Mathematics
Find all points where the function is discontinuous.
A. x = 2 B. None C. x = -2, x = 2 D. x = -2
Mathematics
Evaluate the exponential expression.(-1)5
A. 5 B. 1 C. -5 D. -1
Mathematics
Solve.A town has a population of 3000 people and is increasing by 9% every year. What will the population be at the end of 8 years?
A. 5978 B. 5160 C. 5484 D. 6516
Mathematics