Integrate the function f over the given region.f(x, y) = 
over the square 4 ? x ? 5, 4 ? y ? 5
A. ln 
B. 
2
C. 
2
D. 
Answer: B
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Find the equilibrium solution of the equation. Use a sketch of the direction field for 
to determine whether the equilibrium is stable.u'(t) + 
= -1
A. u = -14; stable
B. u = 
; unstable
C. u =- 
; stable
D. u = 14; unstable
Write the sentence using the requested unit of measure. Sue's family brought a total of 245 pounds of luggage on the trip. Express this number in kilograms. Use a decimal approximation and round your answer to the nearest hundredth.
A. Sue's family brought a total of 394.45 kilograms of luggage on the trip. B. Sue's family brought a total of 111.23 kilograms of luggage on the trip. C. Sue's family brought a total of 151.9 kilograms of luggage on the trip. D. Sue's family brought a total of 539 kilograms of luggage on the trip.
Solve the problem.A marina owner wishes to estimate a linear function that relates boat length in feet and its draft (depth of boat below water line) in feet. He collects the following data. Let boat length represent the independent variable and draft represent the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the draft for a boat 60 feet in length (to the nearest tenth)? 
A. 10.5 ft B. 10.3 ft C. 9.6 ft D. 15.7 ft
Solve the problem.A small company borrows $48,000 at 3% compounded monthly. The loan is due in 7 years. How much interest will the company pay?
A. $11,201.03 B. $11,053.40 C. $11,170.16 D. $59,201.03