Determine if the vector u is in the column space of matrix A and whether it is in the null space of A.u = 
, A = 
A. Not in Col A, not in Nul A
B. In Col A, not in Nul A
C. Not in Col A, in Nul A
D. In Col A and in Nul A
Answer: A
Mathematics
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Solve.A photograph that is 4 in. wide by 6 in. long is to be made into a poster that is 
ft wide. What will be the new length?
What will be an ideal response?
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Provide an appropriate response.Choose the inequality corresponding to the graph:
A. y ? 
x + 1
B. y > 
x + 1
C. y ? 
x + 1
D. y < 
x + 1
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Provide an appropriate response.When two linear equations are solved for y and the slopes are equal and the y-intercepts are different, the lines are 
A. Intersecting B. Parallel C. One Graph
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