Solve the system of equations.5x + 4y + z = 05x - 5y - z = -125x + y + 2z = -9
A. (-1, -3, 2)
B. (-3, 2, -1)
C. (2, -1, -3)
D. (-1, 2, -3)
Answer: D
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Use the root test to determine if the series converges or diverges.
A. Diverges B. Converges
Simplify the expressions. Make all exponents positive.(-2x2)3
A. -8x5 B. 8x6 C. -2x6 D. -8x6
Graph the radical function. Compare the graph to that of the square root function or cube root function.G(x) = 
A. It looks like the graph of the square root
function, but it is shifted 4 units to the right.
B. It looks like the graph of the square root
function, but it is shifted 4 units down.
C. It looks like the graph of the square root
function, but it is shifted 4 units to the left.
D. It looks like the graph of the square root
function, but it is shifted 4 units up.
Tell which set or sets the number belongs to: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers.- 
A. rational, real B. integers, real C. irrational, real D. real