Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.Vertices at (0, 6) and (0, -6); asymptotes y =
x and y = -
x
A. -
= 1
B. -
= 1
C. -
= 1
D. -
= 1
Answer: A
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Solve the problem.The velocity of a fluid flowing out of a tank through a small opening d ft below the surface is given by the expression . Simplify the expression.
A.
B.
C.
D.
Find the derivative by solving the given implicit equation for y explicitly in terms of x.
?
?
A.
B.
C.
D.
Solve the problem.In September 1998 the population of the country of West Goma in millions was modeled by At the same time the population of East Goma in millions was modeled by
In both formulas x is the year, where
corresponds to September 1998. Assuming these trends continue, estimate the year when the population of West Goma will equal the population of East Goma.
A. 2009 B. 1987 C. 2008 D. 2011
Solve the problem.Brandon can paint a fence in 12 hours and Elaine can paint the same fence in 11 hours. How long will they take to paint the fence if they work together?
A. 5 hr
B. 5 hr
C. 11 hr
D. 5 hr