An urn contains four balls numbered 1, 3, 4, and 6. If a person selects a set of two balls at random, what is the expected value of the product of the numbers on the balls?
What will be an ideal response?
Mathematics
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Find the derivative of the function at P0 in the direction of u.f(x, y) = 3x - 9y, P0(-10, -5), u = 4i - 3j
A. - 3
B. 
C. 
D. - 
Mathematics
Set up an integral for the area of the surface generated by revolving the given curve about the indicated axis.xy = 5, 3 ? y ? 4; y-axis
A. 10?
dx
B. 10?
dx
C. 5?
dx
D. 5?
dx
Mathematics
Find the limit.
A. ? B. 0 C. -? D. -1
Mathematics
Add or subtract and simplify. Write the answer as a whole or mixed number when necessary.9
- 5
A. 3
B. 4
C. 4
D. 4
Mathematics