Perform the indicated operation.(11x2 - xy - y2) + (x2 + 6xy + 4y2)
A. 11x2 + 6xy + 4y2
B. 10x2 - 7xy - 5y2
C. 12x2 + 5xy + 3y2
D. 12x2 + 7xy + 5y2
Answer: C
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Suppose a traveler wanted to visit a museum, an art gallery, and the state capitol building. 45-minute tours are offered at each attraction hourly from 10 a.m. through 3 p.m. (6 different hours). Solve the problem, disregarding travel time.In how many ways could the traveler schedule all three tours in one day, with the museum tour being after noon?
A. 20 B. 60 C. 30 D. 40
Find the balance for the check stub.
A. $4392.63 B. $5358.66 C. $5278.84 D. $4660.22
Simplify and add or subtract wherever possible.
- 8
+ 6
A. -42
B. -26
C. 26
D. -243
Solve the problem.An arch for a bridge over a highway is in the form of a semiellipse. The top of the arch is 35 feet above ground (the major axis). What should the span of the bridge be (the length of its minor axis) if the height 30 feet from the center is to be 10 feet above ground?
A. 117.17 ft B. 116 ft C. 33.49 ft D. 66.97 ft