Find an equation for the parabola described.Focus at (1, -1); directrix the line x = -5
A. (x + 2)2 = 12(y + 1)
B. (x + 1)2 = 12(y + 2)
C. (y + 1)2 = -12(x + 2)
D. (y + 1)2 = 12(x + 2)
Answer: D
Mathematics
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and 
A. 
B. 
C. 
D. 
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Write the expression in condensed form.
ln x - ln 2
A. ln
B. ln 
C. ln(
- 2)
D. ln
Mathematics
Find an equation of the inverse relation.y = 2x - 7
A. x = 2y - 7 B. x = 2y + 7 C. y = 2 - 7x D. y = 2x + 7
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Find the value of the specified finite sum.Given 
= 5 and 
= 9, find 
.
A. 13 B. 23 C. -23 D. -13
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