Write the given set in interval notation and graph the set on a number line.{x|x ? 7}
A. (7, ?)
B. [7, ?)
C. (-?, 7)
D. (-?, 7]
Answer: D
Mathematics
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Solve the problem.One end of a guy wire is attached to the top of a 10-foot pole and the other end is anchored into the ground 6 feet from the base of the pole. Find the length of the guy wire. Round to the nearest tenth of a foot when appropriate. 
6 ft
A. 11.7 ft B. 12.3 ft C. 16 ft D. 16.6 ft
Mathematics
Find the total area of the region between the curve and the x-axis.y = 2x - x2; 0 ? x ? 2
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.For N ? 1, the Lucas numbers are defined explicitly by the formula 
A. 1,618,034 B. 30 C. 3,010,349 D. 618,034 E. 1,860,498
Mathematics
In a parallel circuit, R = 300 ê and C = 15 æF. Find Z when f = 60 Hz.
a. 152 /-60è ê b. 176 /-30.4è ê c. 348 /59.6è ê d. 176 /59.6è ê e. 348 /-59.6è ê
Mathematics