Solve the equation.x2 = 121
A. {60.5}
B. {11}
C. {±12}
D. {±11}
Answer: D
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Solve.Find the focus and directrix of the parabola x2 - 8x + 4y + 32 = 0
A. F: (4, -3); D: y = -5
B. F: (4, -8); D: y = 0
C. F: 
; D: y = - 
D. F: (4, -5); D: y = -3
Write the number as a Greek numeral.80,607
A. ,???
B. 
??
C. 
??
D. ,???
Find the transverse axis, vertices, and foci of the hyperbola.
- 
= 1
A. transverse axis is x-axis
vertices at (-10, 0) and (10, 0)
foci at (- 2
, 0) and (2
, 0)
B. transverse axis is x-axis
vertices at (-8, 0) and (8, 0)
foci at (-10, 0) and (10, 0)
C. transverse axis is y-axis
vertices at (0, -8) and (0, 8)
foci at (0, - 2
) and (0, 2
)
D. transverse axis is x-axis
vertices at (-8, 0) and (8, 0)
foci at (- 2
, 0) and (2
, 0)
Solve the problem.At one college, GPAs are normally distributed with a mean of 2.6 and a standard deviation of 0.6. What percentage of students at the college have a GPA below 3.2?
A. 68% B. 84% C. 16% D. 95%