Provide an appropriate response.What are the elements of the third row of the following matrix? 
A. 1, -5, 2, 6
B. 3, 4, 2
C. -2, 1, 3, 4
D. -2, -1, 2
Answer: A
Mathematics
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Solve the system of equations.- 
x + 5y - 2z = -313x + 
y + z = 20 x - 3y + 4z = 31
A. (6, -3, 4) B. (9, -3, 5) C. (6, -6, 5) D. (9, -6, 4)
Mathematics
Evaluate the expression.4 ? 6 - 92
A. 57 B. 270 C. 462 D. -57
Mathematics
Solve the problem.45% of what number is 71?
A. 1580 B. 100 C. 158 D. 1
Mathematics
Solve the problem.The revenue for a small company is given by the quadratic function 
where t is the number of years since 1998 and r(t) is in thousands of dollars. If this trend continues, find the year after 1998 in which the company's revenue will be $730 thousand. Round to the nearest whole year.
A. 2002 B. 2006 C. 2004 D. 2003
Mathematics