Write the sentence as an equation. Let the variable x represent the number.Five times a number is equal to 30 decreased by the number.
A. 5 + x = 30 - x
B. 5x = 30 + x
C. 5x = x - 30
D. 5x = 30 - x
Answer: D
Mathematics
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Find the vertices and foci of the ellipse.196x2 + 49y2 = 9604
A. Vertices: (±14, 0); Foci: (±7
, 0)
B. Vertices: (±7, 0); Foci: (±7
, 0)
C. Vertices: (0, ±14); Foci: (0, ±7
)
D. Vertices: (0, ±7); Foci: (0, ±7
)
Mathematics
Match the function with its graph.f(x) = - 
A. 
B. 
C. 
D. 
Mathematics
The symmetric property of congruence allows us to conclude that if AB ? PQ, then
(a) PQ ? AB (b) PQ ? PQ (c) AB ? AB (d) All of these follow from the symmetric property. (e) Both (b) and (c) follow from the symmetric property.
Mathematics
Simplify, if possible.2 - 
2
A. 12 B. -16 C. -12 D. -14
Mathematics