Find the projection of u onto v.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: D
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Find all the second order partial derivatives of the given function.f(x, y) = cos (xy2)
A. 
= - y2 sin xy2; 
= 2y
; 
= 
= 2
B. 
= -y4 cos xy2; 
= - 2x[2xy2 cos (xy2) + sin(xy2)]; 
= 
=
- 2y[xy2 cos (xy2) + sin(xy2)];
C. 
= y2 sin xy2; 
= 2[2y2 cos (xy2) - sin (xy2)] ; 
= 
= 2y[y2 cos (xy2) - sin (xy2)]
D. 
= - y2 sin xy2; 
= 2[ sin (xy2)- 2y2 cos (xy2)] ; 
= 
= 2y [sin (xy2)-y2 cos (xy2)]
Solve the problem.A particular vitamin comes in 600 milligram tablets. Convert this to ounces. Round answer to the nearest thousandth, if necessary. 
A. 17.01 oz B. 0.212 oz C. 0.273 oz D. 0.021 oz
Solve.A computer printer costs $720. If the sales tax rate is 3
%, how much tax is charged and what is the total price? Round your answers to the nearest cent.
A. $252.00, $972.00 B. $25.20, $745.20 C. $18.00, $738.00 D. $32.40, $752.40
Solve the formula for the specified variable.I = 
for n
A. n = 
B. n = 
C. n = 
D. n = IR(Ir - E)