Evaluate the determinant.
A. 40
B. 35
C. -40
D. -45
Answer: C
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Use unit ratios or conversion factors to change to the units indicated. Round to the nearest tenth, if necessary.5.2 m to inches
A. 13.2 in. B. 5.7 in. C. 187.2 in. D. 204.7 in.
Use the binomial series to expand the function as a power series. Find the radius of convergence.
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Without using a calculator, give the exact trigonometric function value with rational denominator.cos 60°
A. 
B. 
C. 
D. 
Use the four-step procedure to solve the variation problem.A person's hair length varies directly as the number of weeks it has been growing. If Fred shaved his head bald and his hair was 0.28 inches long after 7 weeks, how long would it be after an additional 6 weeks? Round to the nearest hundredth of an inch.
A. 1.50 inches B. 0.24 inch C. 3.25 inches D. 0.52 inch