Factor by grouping.14r2 + 63ry - 2xr - 9xy
A. (2r + 9y)(7x - r)
B. (2r + 9y)(7r - x)
C. (2r + 9y)(x - 7r)
D. (9r + 2y)(7r - x)
Answer: B
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = x + 1, y = 0, x = -1, x = 8
A. 40?
B. 81?
C. 
?
D. 243?
Find the equation of the conic with the given characteristics.Ellipse with foci at (-1, 5), and (-5, 5); vertex at (-8, 5)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Use Hamilton's method to find the apportionment.A country has five states with populations as given in the table below and needs to apportion 250 seats in the legislature. Use Hamilton's method to apportion the seats.
A. 
B. 
C. 
D. 
Decide whether the statement is true or false.The sum of the measures of the exterior angles of any quadrilateral is 360°.
A. True B. False