The owner of the Rancho Los Feliz has 3,200 yd of fencing material with which to enclose a rectangular piece of grazing land along the straight portion of a river.
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If fencing is not required along the river, what are the dimensions of the largest area that he can enclose?
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What is this area?
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What will be an ideal response?
800; 1,600; 1,280,000
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A. ?rh2 B. 2?r2h C. ?rh D. ?r2h
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What will be an ideal response?
Solve the problem.The loudness of a sound is measured in decibels (dB). The loudness L of a sound is related to its intensity I by the equation 
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W/m2.
A. ? 45 dB B. ? 75 dB C. ? 55 dB D. ? 65 dB