Solve.
= 9
A. 
B. ?
C. 365
D. 
Answer: D
Mathematics
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Solve using Cramer's rule.
A. (-4, 3) B. (3, 4) C. (4, 3) D. (-3, -4)
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Find the limit, if it exists.
A. -2 B. 2 C. Does not exist D. 0
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Solve.The function A = A0e-0.0077x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 300 pounds of the material are initially put into the vault, how many pounds will be left after 30 years?
A. 38 pounds B. 50 pounds C. 238 pounds D. 450 pounds
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Use the Pythagorean Theorem to find the length of the missing side.Then find the indicated trigonometric function of the given angle. Give an exact answer with a rational denominator.Find cos ?.
A. 
B. 
C. 
D. 
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