Solve the system by elimination.0.09x + 0.03y = 0.123x + y = 4
A. 
B. ?
C. 
D. 
Answer: C
Mathematics
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Use Gauss's Divergence Theorem to calculate 
.F(x, y, z) = 3xi + 2yj + 3zk, S is the solid sphere x2 + y2 + z2 ? 16
A. 512
B. 
?
C. 
?
D. 
?
Mathematics
Graph the function. Determine the symmetry, if any, of the function.y = -x4/3
A. Symmetric about the y-axis
B. No symmetry
C. Symmetric about the y-axis
D. No symmetry
Mathematics
Write the number in ordinary notation.9 × 10-4
A. 0.009 B. 0.0009 C. -90,000 D. 0.00009
Mathematics
Solve by the substitution method.7x + 9y = 143x + 7y = 6
A. {(2, 0)} B. {(1, 1)} C. {(x, y)|7x + 9y = 14} D. ?
Mathematics