Find the directrices of the hyperbola. 
- 
= 1
A. y = -6 ± 
B. y = -6 ± 
C. y = ± 
D. x = 7 ± 
Answer: B
Mathematics
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Find anand a6 for the following arithmetic sequence.a10 = 40, a11 = 6
A. an = 346 - 34(n - 1), a6 = 142 B. an = 346 + 34(n - 1), a6 = 550 C. an = 346 + 34(n - 1), a6 = 516 D. an = 346 - 34(n - 1), a6 = 176
Mathematics
Do the operation and express the answer in 
form.
?
What will be an ideal response?
Mathematics
Insert "?" or "?" in the blank to make the statement true.? ?
A. ? B. ?
Mathematics
Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.2 - 6 + 18 - 54 + 162 - ... + 2 ? (-3)11
A. -265,726 B. -265,713 C. -265,722 D. -265,720
Mathematics