Write the rational expression in lowest terms.
A. 3k
B. 3k2
C. 12k2
D. 12
Answer: B
Mathematics
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Use the method of undetermined coefficients to solve the differential equation.3
- 13
+ 4y = xe-2x; 
= - 
and y = 
when x = 0
A. y = 
e4x - 
ex/3 - 
xe-2x + 
e-2x
B. y = 
e4x + 
ex/3 + 
xe-2x + 
e-2x
C. y = 
e4x - 
ex/3 + 
xe-2x + 
e-2x
D. y = 
e4x - 
ex/3 + 
xe-2x + 
e-2x
Mathematics
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
Provide an appropriate response.Find the coordinates of the midpoint of the segment with endpoints (-3, 4) and (5, -9).
A. 
B. 
C. (8, -13)
D. 
Mathematics
Find the whole.30% of what number of courts is 65 courts?
A. 217 courts B. 2170 courts C. 20 courts D. 22 courts
Mathematics