Find the focus and directrix of the parabola with the given equation.11x2 = 20y
A. Focus: 
, directrix: x = - 
B. Focus: 
, directrix: y = 
C. Focus: 
, directrix: y = - 
D. Focus: 
, directrix: y = - 
Answer: D
Mathematics
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Approximate the value of the square root, rounded to the indicated place.
to 3 decimal places
A. 28.448 B. 809.000 C. 28.443 D. 28.440
Mathematics
Express in simplified form. Assume that all variables represent positive real numbers.
A. y4 - 6
B. 
C. 
D. 6y4
Mathematics
Solve the absolute value inequality. Write your answer in interval notation.|5y - 4| > -5
A. 
B. 
C. No solution
D. (-?, ?)
Mathematics
Simplify.(
+ 4)(
- 4)
A. 22
B. 2
C. 6 - 2
D. -10
Mathematics