Find a basis for the column space of the matrix 
.
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: B
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A city crew must paint the median divider along each of the 48 streets in the neighborhood shown below (starting and ending at A). The foreman wants to organize the route in the most efficient possible way.
An optimal eulerization of the graph that models this problem can be obtained by adding
A. 12 edges. B. 10 edges. C. 16 edges. D. 14 edges. E. none of these
Simplify.
A. -i
B. 10i
C. ±10
D. -10i
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. x2 B. -16 C. 2x D. 16
Use elimination to solve each system of equations, if possible. Identify the system as consistent or inconsistent. If the system is consistent, state whether the equations are dependent or independent. -6x + 6y = -244x + 2y = -8
A. infinitely many solutions and dependent B. (0, -4); consistent and independent C. (-1, -3); consistent and independent D. (0, -3); consistent and independent