Solve the problem.A manufacturer determines that the profit in dollars for manufacturing n units is 
(Assume that n is a positive integer) How many units are produced when the profit is $495?
A. 40 units
B. 10 units
C. 30 units
D. 35 units
Answer: C
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The loudness L(x), measured in decibels, of a sound of intensity x, measured in watts per square meter, is defined as 
watt per square meter is the least intense sound that a human ear can detect. Determine the loudness, in decibels, of the sound.At a recent Phish rock concert, sound intensity reached a level of 0.50 watt per square meter. To the nearest whole number, calculate the loudness of this sound in decibels.
A. 107 decibels B. 123 decibels C. 117 decibels D. 112 decibels
Find the specified minor and cofactor for the matrix A.M11 and A11 if A = 
A. M11 = 32 and A11 = - 32 B. M11 = 32 and A11 = 32 C. M11 = -23 and A11 = -23 D. M11 = 23 and A11 = 23
Solve the problem. Use 3.14 as the approximate value of ?. Round to the nearest tenth unless otherwise indicated.Three people build a rectangular shed 7 ft wide, 5 ft long, and 6 ft high. How many cubic feet does the shed contain?
A. 107 ft3 B. 18 ft3 C. 1,470 ft3 D. 210 ft3
Find tan 69° by using either the table or a calculator. Round your answer to four decimal places, if required.
?
Fill in the blank(s) with the appropriate word(s).