Solve the system by the addition method.y = x2 + 4y = -x2 + 10
A. {(
, 7), (-
, 7)}
B. {(7, 
), (7, -
)}
C. {(
, 7), (
, -7)}
D. {(
, 7), (
, -7), (-
, 7), (-
, -7)}
Answer: A
Mathematics
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Find the equation for the hyperbola described.Center at (0, 0); focus at (9, 0); vertex at (2, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
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Graph the function.y = -cot 
A. 
B. 
C. 
D. 
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Solve the proportion.
= 
A. 9 B. 2 C. 1 D. 4
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Write in terms of i.
A. i
B. ±8
C. -8i
D. 8i
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