Perform the indicated operation and, if possible, simplify.
+ 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = zk , S is the surface of the sphere x2 + y2 + z2 = 25 in the first octant , direction away from the origin
A. 
?
B. 0
C. 
?
D. 
?
Mathematics
Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.
A. sec2 x B. csc2 x C. 1 D. cot2 x
Mathematics
Write the fraction as a decimal.
A. 0.731 B. 0.68 C. 0.711 D. 0.72
Mathematics
Graph.x2 - y2 = 18
A. 
B. 
C. 
D. 
Mathematics