Find the sum Sn of the first n terms of the geometric sequence. 3, -9, 27, -81, 243, . . . ; n = 10
A. -44,279
B. -44,286
C. -44,292
D. -44,288
Answer: B
Mathematics
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A. 46 B. 49 C. 44 D. 42.3
Mathematics
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 112 ft/sec, and the gorge is 192 ft deep, during what interval can the flare be seen? 
A. 3 < t < 4 B. 0 < t < 3 C. 9 < t < 10 D. 6 < t < 7
Mathematics
Write the fraction as a percent rounded to the nearest tenth, if necessary.
A. 11.3% B. 230% C. 26.1% D. 2.6%
Mathematics
Find the area of the parallelogram.
A. A = 6.2 ft2 B. A = 4.76 ft2 C. A = 9.52 ft2 D. A = 12.4 ft2
Mathematics