Multiply or divide.-2 ÷ 
A. - 
B. - 
C. -18
D. 18
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.A particular Boeing 747 jetliner produces noise at a loudness level of 113 decibels. Find the intensity level (round to the nearest hundredth) in watt per square meter for this noise.
A. 0.40 watt per square meter B. 0.10 watt per square meter C. 0.20 watt per square meter D. 0.80 watt per square meter
The graph of the function is sketched as follows:
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Determine the interval where the function is increasing.
What will be an ideal response?
Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $113,906 B. $911,250 C. $227,813 D. $455,625
Combine like terms and write the resulting polynomial in descending order of powers.8a9 - 2a9 + 4a5 + 15a9 - 11a5
A. 14a9 B. 21a9 - 7a5 C. 14a14 D. Cannot be simplified