Find the indicated term by use of the following information. The r + 1 term of the expansion of (a + b)n is given by 
an - r brThe term involving b6 in (a + b)12
A. 110,880a6b6
B. 665,280a6b6
C. 924a6b6
D. 6a6b6
Answer: C
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Solve the problem.Racing cyclists use the algebraic expression 
to determine the maximum speed, in miles per hour, to turn a corner of radius x, in feet, without tipping over. Find the maximum speed at which a cyclist should travel around a corner of radius 11 feet without tipping over. Write the answer in simplified radical form.
A. 12
miles per hour
B. 4
miles per hour
C. 12 + 
miles per hour
D. 
miles per hour
Even with most of the problem missing, it is possible to tell whether a suggested answer is reasonable. Determine whether the answer given is reasonable. If it is unreasonable, move the decimal point or insert a decimal point to make the answer reasonable.How tall is the skyscraper?2 feet
A. Unreasonable, should be 200 feet B. Unreasonable, should be 0.20 feet C. Reasonable D. Unreasonable, should be 20 feet
Add, first finding the LCD. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Perform the indicated operation and simplify. Assume all variables represent positive real numbers.(4
+ 8)2
A. 88 + 64
B. 16 + 64
C. 144 + 64
D. 144 - 64