Find the foci of the hyperbola.16y2 - 81x2 - 1296 = 0
A. (-
, 0) and (
, 0)
B. (0, -
) and (0, 
)
C. (0, -9) and (0, 9)
D. (0, -
) and (0, 
)
Answer: D
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Find an equation of the line that has the given slope and contains the given point. If possible, write your equation in slope-intercept form.m = 
; (8, 5)
A. y = - 
x - 
B. y = 
x + 
C. y = 
x - 
D. y = - 
x + 
Solve the problem.Suppose you purchase a car and you are going to finance $15,000 for 60 months at an APR of 7.5% compounded monthly. Find the monthly payments on the loan. Round your answer to the nearest cent.
A. $352.28 B. $354.34 C. $300.57 D. $289.99 E. $292.09
A value of sinh x or cosh x is given. Use the definitions and the identity 
to find the value of the other indicated hyperbolic function.sinh x = 
, coth x =
A. 
B. 
C. 
D. 
Solve for the unknown in the equation.-6B + 6 + 4B = -3B + 11
A. B = 5 B. B = -6 C. B = -11 D. B = 11