Solve the system using Gaussian elimination. 7x - y - 6z = 26-5x + 9y - 4z = -2 3x - 7y + z = -5
A. {(5, 1, 3)}
B. {(5, 3, 1)}
C. {(-5, 3, 10)}
D. ?
Answer: B
Mathematics
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Write the mixed number as an improper fraction.9
A. 
B. 
C. 
D. 
Mathematics
Use a graphing calculator to solve the equation. Round to three decimal places, if necessary.2x - 
= 6x + 
A. x = -0.056 B. x = 0.111 C. x = 0.056 D. x = -0.111
Mathematics
Provide an appropriate response.Graph the expression 
on your calculator. Determine what constant or single circular function is equivalent to the given expression.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use properties of limits to find the indicated limit. It may be necessary to rewrite an expression before limit properties can be applied.
A. 0 B. does not exist C. 5 D. -8
Mathematics