Find the dimensions of the null space and the column space of the given matrix.A = 
A. dim Nul A = 4, dim Col A = 1
B. dim Nul A = 2, dim Col A = 3
C. dim Nul A = 3, dim Col A = 3
D. dim Nul A = 3, dim Col A = 2
Answer: D
Mathematics
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Solve the literal equation for the specified variable.a + b = s + r for s
A. s = 
+ b
B. s = a + b - r
C. s = 
D. s = r(a + b)
Mathematics
Provide an appropriate response.If y varies directly as x2, explain why doubling x would not cause y to be doubled as well.
What will be an ideal response?
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
- 
+ 
A. 9x
- 4
B. 8x
- 4
C. 9x
- 4
D. 9
- 
Mathematics
Sketch the graph of the equation.4x + 3y = 12
A. 
B. 
C. 
D. 
Mathematics