Solve the equation.
+ 
= 
+ 
A. r = -4
B. r = 4
C. r = 3
D. r = -12
Answer: A
Mathematics
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Find all the first order partial derivatives for the following function.f(x, y) = xye-y
A. 
= ye-y; 
= xe-y
B. 
= ye-y; 
= - xye-y
C. 
= ye-y; 
= xe-y(y - 1)
D. 
= ye-y; 
= xe-y(1 - y)
Mathematics
Solve the problem.A solid sanding machine disk has a radius of 6 cm and a mass of 4 kg. Find its moment of inertia with respect to its axis.
A. 72 kg?cm2 B. 24 kg?cm2 C. 144 kg?cm2 D. 288 kg?cm2
Mathematics
Evaluate the improper integral or state that it is divergent.
A. -2.5556 B. 0.3333 C. Divergent D. -4.667
Mathematics
Graph the decimal on a number line.13.75
A. 
B. 
C. 
D. 
Mathematics