Find the foci of the given hyperbola.y2 - x2 - 14y + 12x - 36 = 0
A. (6, 7 + 
), (6, 7 - )
B. (6, 7 + 7
), (6, 7 - 7
)
C. (0, 7
), (0,- 7
)
D. (6 + 7
, 7), (6 - 7
, 7)
Answer: B
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Solve problems using a calculator.A train of 38 subway cars weighed a total of 389,766 lb. What was the average weight per car?
A. 10,232 lb B. 10,245 lb C. 10,257 lb D. 10,259 lb
Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = 9x8 + 3x6 + 3x4 + 2x2 + 8
A. possible: 1 pos, 1 neg
actual: 1 pos, 1 neg
B. possible: 1 or 3 pos, 1 neg
actual: 1 pos, 1 neg
C. possible: 1 pos, 1 or 3 neg
actual: 1 pos, 1 neg
D. possible: 0 pos, 0 neg
actual: 0 pos, 0 neg
In 
(not shown), 
. Which statement is not necessarily true?
A. 
B. 
is the vertex angle of 
C. 
is the base of .
D. is the longest side of
Multiply or divide as indicated.
? 
A. - 
B. - 
C. - 
D. 