Use the Gauss-Jordan method to solve the system of equations. x + y + z = 92x - 3y + 4z = 7 x - 4y + 3z = -2
A. 
B. 
C. 
D. 
Answer: C
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Solve the problem.One half of a number is 3 more than one-sixth the same number. What is the number?
A. 8 B. 12 C. 9 D. 18
Solve the problem by integration.Conditions are often such that a force proportional to the velocity v tends to retard the motion of an object. Under such conditions, the acceleration of a certain object moving down an inclined plane is given by 
This leads to the equation 
If the object starts from rest, find the expression for the velocity as a function of time.
A. t = -ln 
B. t = ln 
C. t = -ln 
+ ln 10
D. t = ln 
- ln 10
Solve for part in the problem. Round to the nearest hundredth, if necessary.8.0% of 10 yards
A. 0.8 yd B. 80 yd C. 0.08 yd D. 8 yd
Find the parametrization for the curve.The line segment starting at (6, -6) with t = 0 and ending at (-10, -18) with 
A. x = -6t - 3, y = 6t - 4, for 0 ? t ? 4 B. x = 6t - 4, y = -6t - 3, for 0 ? t ? 4 C. x = -4t + 6, y = -3t - 6, for 0 ? t ? 4 D. x = -3t - 6, y = -4t + 6, for 0 ? t ? 4