Find the equation in standard form of a hyperbola centered at the origin that passes through the given points and whose graph approaches the given asymptotes.(0, -4) and (0, 4); y = - 
x and y = 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Answer: D
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = xyi + xj; C is the triangle with vertices at (0, 0), (6, 0), and (0, 9)
A. - 27 B. 108 C. 0 D. 81
Restate the fact as indicated.The population of the United States in 2000 was roughly 280 million. Express this as the number of people per square mile. The land area of the United States is roughly 3,536,000 square miles.
A. 0.8 people per square mile B. 79 people per square mile C. 8 people per square mile D. 790 people per square mile
Express the number in scientific notation.0.000399
A. 3.99 x 10-5 B. 3.99 x 104 C. 3.99 x 10-4 D. 3.99 x 10-3
This frequency table gives the distribution of ages of 100 people in a small town. 
How many people are:10 years of age or older but less than 40 years of age
A. 51 B. 24 C. 65 D. 11