Multiply.(6y + 11)(9y2 - 2y - 2)
A. 153y2 - 34y - 34
B. 54y3 - 12y2 - 12y + 11
C. 54y3 + 87y2 - 34y - 22
D. 54y3 + 111y2 + 34y + 22
Answer: C
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Solve.The surface speed S in fpm (feet per minute) of a rotating cylindrical object is S = 
,where d is the diameter of the object in inches and n is the rotation in rpm (revolutions per minute). If a grinder has a surface speed of 7500 fpm and a rotation speed of 4777 rpm, what is the diameter of the grinder? Use ? = 3.14.
Fill in the blank(s) with the appropriate word(s).
Multiply. Assume that no radicands were formed by raising negative numbers to even powers.4
(
+ 
)
A. 4
+ 7
B. 4
+ 28
C. 28
+ 28
D. 4
+ 7
Choose the appropriate sketch for the indicated geometric object.Perpendicular lines 
and 
A.
| A? | B |
| C? | D |
B.
C.
D.
Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 
B. x6
C. 6x6
D. 