In a certain city there is a river running through the middle of the city. There are four islands and eleven bridges as shown in the figure below.
Suppose that there is a crossing charge of $1.00 every time one crosses a bridge. A tourist wants to start on the South Bank, stroll across each of the bridges at least once, and return to her hotel on the South Bank at the end of the trip. What is the cheapest possible cost of such a trip?
A. $11
B. $14
C. $12
D. $13
E. none of these
Answer: D
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Solve the SSA triangle. Indicate whether the given measurements result in no triangle, one triangle, or two triangles. Solve the resulting triangle. Round the answer to the nearest tenth.B = 96°, b = 3, a = 24
A. A = 48°, C = 36°, c = 27 B. A = 49°, C = 36°, c = 31 C. No triangle exists. D. A = 47°, C = 36°, c = 29
An expression that occurs in calculus is given. Factor completely.2(x + 4)(x - 3)3 + (x + 4)2 ? 4(x - 3)2
A. (x + 4)(x - 3)2(6x + 10) B. (x + 4)(x - 3)2(3x + 5) C. 2(x + 4)(x - 3)2(3x + 5) D. 2(x + 3)(x - 4)2(3x + 5)
Subtract.80 - 25
A. 75 B. 65 C. 55 D. 50
Solve the problem.The table shows enrollment in 2-year technical schools for 1980, 1990 and 2000. Assuming a linear relationship, estimate the enrollment for 1995.
A. 3.2 million B. 1.5 million C. 4.9 million D. 2.3 million