Rationalize the Denominator

question 456

Multiple Choice

Rationalize the denominator. Assume that all variables represent nonnegative numbers and that the denominator is not
zero.
-The formula T = 0.07D1.5 can be used to approximate the duration of a storm, where is the time in hours and D is the diameter of the storm in miles. A storm that is 25.5 miles in diameter is heading toward a city. How long
Can the residents of the city expect the storm to last? Round you answer to the nearest hundredth of an hour.

• A) 10.24 hr
• B) 8.44 hr
• C) 10.54 hr
• D) 9.01 hr

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Definitions:

Backing Weld

A type of weld applied to the root of a joint for ensuring complete root penetration and to support molten weld metal.

Double-Groove Joint

A type of joint where two parallel grooves are made on each piece of material to be joined, typically used in welding for increased strength.

Joint Preparation

The process of preparing the edges of material pieces that are to be joined together, often by welding, to ensure a strong and clean join.

Root Reinforcement

A reinforcement technique used to strengthen the area near the root of a weld, ensuring enhanced durability and support.