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. 
miles per hour
C. 12
miles per hour
D. 4
miles per hour
Answer: D
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Find the surface area or volume.Use substitution and a table of integrals to find, to two decimal places, the area of the surface generated by revolving the curve 
about the x-axis.
A. 90,329.45 B. 74,906.59 C. 69,213.13 D. 83,719.65
Find the solution to the given equation by reading the accompanying graph.2.9x - 9.28 = 0 y = 2.9x - 9.28 
A. {3.2} B. {2.9} C. {-3.2} D. {-2.9}
Solve the equation by the method of your choice. Simplify irrational solutions, if possible.x2 + 18x + 66 = 0
A. {-18 ± 
}
B. {-9 ± 
}
C. {9 ± 
}
D. {9 ± 
}
Tests of an artifact discovered at the Debert site in Nova Scotia show that 31% of the original 
is still present. What is the probable age of the artifact?
?
(Use 
)
?
Please round your answer to the nearest whole.
?
__________ years old
Fill in the blank(s) with the appropriate word(s).