Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.9x + 0.3y - 5.0z = 2.23.9x - 3.2y + 1.6z = -2.23.2x - 1.5y + 0.9z = 8.8
A. {(34.3, 52.2, 14.0)}
B. {(27.4, 41.8, 11.2)}
C. {(13.7, 20.9, 5.6)}
D. {(6.9, 10.4, 2.8)}
Answer: D
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Evaluate the improper integral or state that it is divergent.
A. 
ln 
B. 
ln 6
C. 
ln 11
D. - 
ln 11
Solve the equation by completing the square.x2 - 4x - 12 = 0
A. {2, -1} B. {-10, -2} C. {-6, 2} D. {6, -2}
Find the amount of each payment needed to accumulate the indicated amount in a sinking fund. Round to the nearest cent.
$9500, money earns 8% compounded quarterly, 5 years
A. $1753.99 B. $1619.37 C. $391.02 D. $791.26
Solve the problem. Round to the nearest hundredth of a percent if needed.During clinical trials of a new drug intended to reduce the risk of heart attack, the following data indicate the occurrence of adverse reactions among 1000 adult male trial members. What is the probability that an adult male using the drug will experience nausea?
A. 1.90% B. 2.39% C. 2.60% D. 28.89%