Use Cramer's rule to solve the linear system.2x + 3y = 333x - 2y = -9
A. (3, 9)
B. (-9, 3)
C. (-3, -9)
D. (9, 3)
Answer: A
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Convert the stock price to decimal notation and to decimal notation rounded to the nearest hundredth.The stock price of a company specializing in renewable forms of energy rose last year to $66
per share.
A. $66.4325; $66.43 B. $66.4375; $66.43 C. $66.4375; $66.44 D. $66.4325; $66.44
Write the expression with positive exponents. Then simplify if possible.
A. 
B. 
C. x4y3z5
D. - 
Solve.Bill swims at a speed of 5.4 mph in still water. The river he's in flows at a speed of 3.8 mph. How long will it take Bill to swim 2.2 mi upstream? Round your answer to the nearest tenth of an hour, if necessary.
A. 0.7 hr B. 3.5 hr C. 1.4 hr D. 0.2 hr
Convert the units.19 mm = m
A. 0.19 m B. 0.019 m C. 19,000 m D. 1900 m