Clear fractions then solve by substitution.
x + 
y = -5 x - y = 2
A. {(-5, -5)}
B. {(4, -5)}
C. ?
D. {(-4, -6)}
Answer: D
Mathematics
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 
, 0 ? y ? 
, x = 0
A. 
B. 
C. 8?
D. 16?
Mathematics
Simplify the complex fraction.
A. 1 - a2
B. 
C. 1
D. 
Mathematics
Solve and check.7a = -63
A. a = -70 B. a = 1 C. a = 70 D. a = -9
Mathematics
Assume you have a digraph with 5 vertices (A, B, C, D, and E) and 9 arcs. B is incident from D, E, and A; C is incident to E and A and incident from D; E is incident to D and incident from A.Vertex E is
A. incident to vertex C only. B. incident to vertex B only. C. incident to vertices B and D. D. incident to vertex A only. E. none of these
Mathematics