Use the Product Rule to Simplify Square Roots
-Racing Cyclists $4 \sqrt { x }$

question 159

Multiple Choice

Use the Product Rule to Simplify Square Roots
-Racing cyclists use the algebraic expression $4 \sqrt { x }$ 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 38 feet without tipping over. Write the answer in simplified radical form.

• A) \(4 \sqrt { 38 }\) miles per hour
• B) \(24 \sqrt { 2 }\) miles per hour
• C) \(24 + \sqrt { 2 }\) miles per hour
• D) \(\frac { 4 ( 6 + \sqrt { 2 } ) } { x }\) miles per hour

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