Simplify the expression by combining any like terms.2b - 8b
A. -6b
B. -10b
C. -6b2
D. 6b
Answer: A
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Find the Jacobian 
or 
(as appropriate) using the given equations.
A. 15 B. -15 C. -450 D. 30
Solve the problem.The average price for a gallon of milk from 1990 to 2000 can be approximated by P(x) = .102(x - 1990) + 1.87, where x is the year. Evaluate P(1998) and interpret the result.
A. P(1998) = 1.95; the average price of a gallon of milk in 1998 was $1.95. B. P(1998) = 2.69; the average price of a gallon of milk in 1998 was $2.69. C. P(1998) = 2.69; the average price of a gallon of milk in 1998 was $2.69 more than in 1990. D. P(1998) = 2.78; the average price of a gallon of milk in 1998 was $2.78.
Provide an appropriate response.The Cobb-Douglas production function for a company is given by P(l, k) = 70l1/4k3/4, where P is the monthly production value when k is the amount of the company's capital investment (in dollars per month) and l is the size of the labor force (in work hours per month). Find 
and 
.
What will be an ideal response?
List the intercepts for the graph of the equation.4x2 + 16y2 = 64
A. (-2, 0), (-4, 0), (4, 0), (2, 0) B. (-4, 0), (0, -2), (0, 2), (4, 0) C. (-4, 0), (-16, 0), (16, 0), (4, 0) D. (-16, 0), (0, -4), (0, 4), (16, 0)