Find the distance between the points.(3, -3) (5, -7)
A. 12
B. 2
C. 12
D. 6
Answer: B
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = 
A. F = - 
i - 
j - 
k
B. F = 
i + 
j + 
k
C. F = - 
i - 
j - 
k
D. F = 
i + 
j + 
k
Mathematics
Add.
x2 - 
x + 
A. 
x2 + 
x + 
B. - 
x2 - 
x + 
C. - 
x2 + 
x + 
D. 
x2 - 
x + 
Mathematics
Find the dimensions of the null space and the column space of the given matrix.A = 
A. dim Nul A = 3, dim Col A = 4 B. dim Nul A = 5, dim Col A = 2 C. dim Nul A = 4, dim Col A = 3 D. dim Nul A = 2, dim Col A = 5
Mathematics
Multiply. Assume that all variables represent non-negative real numbers.(
+ 
)(
- 
)
A. 4
B. 11 - 2
C. 11 - 2
D. 18
Mathematics