Evaluate the rational expression.
when x = 2
A. - 23
B. - 
C. 
D. 
Answer: B
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Solve the problem.For the triangle with vertices located at A(5, 5, 3), B(2, 4, 2), and C(1, 1, 1) , find a vector from vertex C to the midpoint of side AB.
A. 
i + 
j + 
k
B. 
i + 
j + 
k
C. 
i + 
j + 
k
D. 
i + 
j + 
k
Use the Runge-Kutta method to find y-values of the solution for the given values of x and ?x, if the curve of the solution passes through the given point.
= x + sin y; x = 0 to 0.3; ?x = 0.1; (0, 1)
A. 
B. 
C. 
D. 
Evaluate using a scientific calculator. Express answer rounded to three decimal places.e-2.8
A. 0.061 B. 0.361 C. -7.611 D. -0.061
Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. {(-19, 5)} B. {(19, -5)} C. no solution or ? D. infinitely many solutions; dependent equations