Solve the system of equations.0.1x + 0.3y + 0.4z = -0.10.1x - 0.4y + 0.2z = -1.60.4x - 0.4y - 0.4z = 0.8
A. (0.2, 2, -2)
B. (0.3, 3, -2)
C. (2, 3, -3)
D. (0.3, 2, -3)
Answer: C
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Estimate the magnitude of the error involved in using the sum of the first four terms to approximate the sum of the entire series.
A. 1.56 × 10-2 B. 3.13 × 10-2 C. 6.25 × 10-3 D. 2.60 × 10-3
Use a graphing utility to graph the parametric equation.x(t) = t2 + 2, y(t) = 2t - 1, -3 ? t ? 3
A. 
B. 
C. 
D. 
Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.The amount of water in a pool as it is being filled, as a function of time.
A. Quadratic; leading coefficient positive B. Linear C. Quadratic; leading coefficient negative
Subtract.7.6 - 3.5
A. 4.1 B. 11.1 C. 11.7 D. 10.5