Solve the system of linear equations. If the system has infinitely many solutions, describe the solution with an ordered triple in terms of variable z.x + y + z=92x - 3y + 4z=7x - 4y + 3z=-2
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify the expression. Assume all variables represent positive real numbers.
A. 4x
B. x 
C. 
D. 
Mathematics
Evaluate the expression.
A. 1 B. 21 C. 0! D. 7
Mathematics
Solve the problem.Find the volume of the solid generated by revolving the region bounded by the curve 
the 
and the vertical line 
about the x-axis.
A. ? e B. ?(e - 1) C. 2?(e2 - 1) D. ?(e2 - 1)
Mathematics
Find the given trigonometric function of the indicated angle using triangle ABC. cos C, where a=8, b=18, c=25.
Mathematics