Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the determinant by expansion by minors.
A. -15 B. -34 C. 15 D. -64
Mathematics
Find the average value of 
over the given region.
over the cube in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 25 B. 125 C. 250 D. 1250
Mathematics
Determine whether the statement is true or false.The function f(x) = 
is decreasing on the interval (-?, ?)
A. True B. False
Mathematics
P( X ? 9)
The probability density function of X is f (x) = 81 / x4 over [3, ?) . Compute the following quantity.
Mathematics