Find the cofactor of the indicated element.a21
A. -1
B. 23
C. -23
D. 1
Answer: D
Mathematics
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Find the average value of 
over the given region.
z3 over the cube in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Mathematics
Determine if the series converges or diverges. If the series converges, find its sum.
A. converges; 
B. converges; 
C. diverges
D. converges; 
Mathematics
Multiply.7(6)
A. 420 B. 35 C. 42 D. 32
Mathematics
Solve the problem. Round to the nearest cent as needed.The monthly payments on a $79,000 loan at 14% annual interest are $982.76. How much of the first monthly payment will go toward interest?
A. $845.17 B. $137.59 C. $1106.00 D. $921.67
Mathematics