Find the coordinates of the centroid of the given figure.The solid generated by revolving the region bounded by y2 = 49x and x = 1 about the x-axis
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the equation.
= 
A. 8 B. 4 C. 0 D. No solution
Mathematics
Suppose ? is an angle in standard position. Given either a point on the terminal side of ? or an equation of the terminal side of ?, give the exact value of the indicated trigonometric function(s). (6, 8); find cos ?.
A. 
B. 
C. 
D. 
Mathematics
Solve. Round to the nearest cent if necessary.Last year the profit for a company was $189,000. This year's profit decreased by 2.4%. Find this year's profit.
A. $45,360 B. $184,464 C. $143,640 D. $4536
Mathematics
Find the missing angle measure.In ?DEF, the m(?D) = 91° and the m(?E) = 33° . Find m(?F).
A. 46° B. 89° C. 124° D. 56°
Mathematics