For the given vectors u and v, find the angle between them.u = 
, v = 
A. 7.6°
B. 82.4°
C. 56.1°
D. 78.7°
Answer: A
Mathematics
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Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 15
D. 10
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Find the determinant.
A. 
B. - 
C. 0
D. 
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Factor completely. If the polynomial is prime, state this.169s2 - 4t4
A. (13s + 2t2)(13s - 2t2) B. (13s - 2t2)2 C. Prime D. (13s + 2t2)2
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Simplify the expression 
.
A. 
B. 
C. 
D. 
E. 
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