Find the domain and range and describe the level curves for the function f(x,y).f(x, y) = 10x + 4y
A. Domain: all points in the xy-plane; range: real numbers z ? 0 ; level curves: lines 
c ? 0
B. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
C. Domain: all points in the xy-plane; range: all real numbers; level curves: lines 
c > 0
D. Domain: all points in the xy-plane; range: real numbers z ? 0; level curves: lines 
c ? 0
Answer: B
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Use the brute force algorithm to find a minimum Hamilton circuit for the graph. Also, determine the total weight of the minimum Hamilton circuit.
A. Minimum Hamilton circuit is A ? B ? E ? D ? C ? A; weight = 83 B. Minimum Hamilton circuit is A ? B ? E ? C ? D ? A; weight = 83 C. Minimum Hamilton circuit is A ? B ? C ? D ? E ? A; weight = 83 D. Minimum Hamilton circuit is A ? B ? C ? E ? D ? A; weight = 83
Find the center (h, k) and radius r of the circle with the given equation. x2 + 8x + 16 + y2 + 18y + 81 = 36
A. (h, k) = (9, 4); r = 36 B. (h, k) = (4, 9); r = 36 C. (h, k) = (-9, -4); r = 6 D. (h, k) = (-4, -9); r = 6
Approximate the value using a calculator. Express answer rounded to three decimal places.2 
A. 5.292 B. 64.000 C. 7.000 D. 6.258
How long will it take an investment of $8,000 to double if the investment earns interest at the rate of 8% / year compounded monthly? Round your answer to the nearest tenth. ? __________ year(s)
Fill in the blank(s) with the appropriate word(s).