Solve the system of equations by Gauss-Jordan elimination.
A. {(-5, 0, 4)}
B. {(-5, 4, 0)}
C. {(0, 4, -5)}
D. ?
Answer: D
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Solve by factoring completely. If three identical squares have a total area of 27x2 + 18x + 3, find the length of one side of one of the squares.
A. 3x + 1 B. 2(3x + 1) C. (3x + 3)2 D. 3x - 1
Solve the problem.The following data represents the Olympic winning time in Women's 100 m Freestyle. 
Using the line of best fit (with slope correct to 5 decimal places) for the data set, predict the Olympic winning time in 2016.
Fill in the blank(s) with the appropriate word(s).
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.4 x + 7 = 6
A. {-0.67} B. {-5.71} C. {1.62} D. {7.77}
Write the expression as a single logarithm. Leave your answer in simplest form without negative or fractional exponents.loga 5x + 4(loga x - loga y)
A. 
B. loga 
C. loga(5x + x4 - y4)
D. loga 