Solve.The second angle of a triangle is 4 times as large as the first. The third angle is 50° more than the sum of the other two angles. Find the measure of the second angle.
A. 52°
B. 65°
C. 13°
D. 3
°
Answer: A
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 
, 0 ? y ? 
, x = 0
A. 8?
B. 
C. 
D. 16?
One of the values r (radius), d (diameter), V (volume), or S(surface area) is given for a particular sphere. Find the indicated value. Leave ? in your answer.V = 288? m3; d = ?
A. 6 m B. 12 m C. 8 m D. 2 m
Sketch the vectors u and w with angle ? between them and sketch the resultant.
= 8, 
= 16, ? = 15°
A. 
B. 
Solve the percent of change problem.Jennifer's annual salary increased from $20,000 to $48,000 over the last five years. Find the percent of increase in her salary during this time period. Round to the nearest tenth of a percent.
A. 58.3% B. 1.4% C. 140.0% D. 14.0%