Find an equation of the following curve.A hyperbola centered at the origin having vertex at (0, -8) and eccentricity equal to 2
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Answer: D
Mathematics
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Find the square root. When necessary, round to nearest thousandth.
A. 3.752 B. 3.742 C. 3.741 D. 4.742
Mathematics
Write a formula for the general term, or nth term, for the given sequence.
, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics
Solve the problem.George Higgendorf sells used books. He had start-up costs of $2800 and pays $2.75 for each book. He sells each book for $5.00. Express the revenue R as a function of x, where x represents the number of books sold.
A. R(x) = 2800x B. R(x) = 7.75x C. R(x) = 2.75x D. R(x) = 5.00x
Mathematics
Solve. Round to the nearest percent if necessary.A company increased the number of its employees from 20 to 26. What was the percent of increase?
A. 6% B. 130% C. 23% D. 30%
Mathematics