Solve the absolute value inequality. Write your answer in interval notation.|5k + 9| + 5 > 7
A. 
B. 
C. 
D. 
? 
Answer: D
Mathematics
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Find the linearization of the function at the given point.
at 
A. 
B. 
C. 
D. 
Mathematics
Convert the improper fraction into a mixed number.- 
A. 4
B. -6
C. -7
D. -1
Mathematics
Find all the second order partial derivatives of the given function.f(x, y) = cos (xy2)
A. 
= y2 sin xy2; 
= 2[2y2 cos (xy2) - sin (xy2)] ; 
= 
= 2y[y2 cos (xy2) - sin (xy2)]
B. 
= -y4 cos xy2; 
= - 2x[2xy2 cos (xy2) + sin(xy2)]; 
= 
=
- 2y[xy2 cos (xy2) + sin(xy2)];
C. 
= - y2 sin xy2; 
= 2y
; 
= 
= 2
D. 
= - y2 sin xy2; 
= 2[ sin (xy2)- 2y2 cos (xy2)] ; 
= 
= 2y [sin (xy2)-y2 cos (xy2)]
Mathematics
Find the sum or difference. Write the answer in standard form.(4 - 7i) + (-8 + 2i) + 2i
A. -2 - 3i B. 12 - 5i C. -4 - 3i D. -4 + 3i
Mathematics