Rationalize the denominator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. 
Answer: D
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Graph the curve whose parametric representation is given. x = 3 cosh t , y = 5 sinh t, -? < t < ?
A. 
B. 
C. 
D. 
Solve the problem.The value of a certain make and model of used car can depend on several factors. The table gives data for the values of three Chevy Caprice station wagons. The value V is measured in dollars, where A is the age of the car in years, and C is the condition of the car rated on a scale of 1 to 10 (10 is excellent condition).
The variables are found to be related by the equation 
Use the information given in the table to write a matrix equation which when solved will yield the values of a, b, and c. Then, using the fact that the inverse of the
matrix 
is 
, find b.
A. b = 2600
B. b = -1600
C. b = - 1400
D. b = 2200
Consider the points plotted in the graph below.
Give the coordinates for points I and J.
A. I: (-4, -5), J: (-3, 0) B. I: (5, 4), J: (0, -3) C. I: (5, 4), J: (-3, 0) D. I: (-5, -4), J: (0, -3)
Find the derivative.f(x) = 
A. f'(x) = 
x9/8
B. f'(x) = 
x-7/8
C. f'(x) = 7(7
)
D. f'(x) = - 
x-9/8