Find the vertices and locate the foci for the hyperbola whose equation is given.25y2 - 9x2 = 225
A. vertices: (-3, 0), (3, 0)
foci: (-
, 0), (
, 0)
B. vertices: (-5, 0), (5, 0)
foci: (-4, 0), (4, 0)
C. vertices: (0, -3), (0, 3)
foci: (0, -
), (0, 
)
D. vertices: (0, -5), (0, 5)
foci: (0, -
), (0, 
)
Answer: C
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Evaluate the integral by making a substitution and then using a table of integrals.
A. - 10 ln 
+ C
B. ln 
+ x - 10 ln 
+ C
C. ln 
- 10 ln 
+ C
D. ln 
- 10 ln 
+ C
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Solve the inequality. Write the solution set in interval notation.(x + 4)(x + 3)(x - 9) > 0
A. (-4, -3) ? (9, ?) B. (9, ?) C. (-?, -3) D. (-?, -4) ? (-3, 9)
Write a linear inequality in two variables to represent the situation.Mrs. White wants to crochet hats and afghans for a church fund raising bazaar. She needs 5 hours to make a hat and 4 hours to make an afghan, and she has no more than 53 hours available. Let x represent the number of hats she makes and y represent the number of afghans she makes.
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