Determine the domain and range of the function.
A. domain: (-?, ?); range: [0, 4]
B. domain: [0, 4]; range: (-?, ?)
C. domain: (0, 4); range: (-?, ?)
D. domain: (-?, ?); range: (0, 4)
Answer: A
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Make the indicated conversion. 46.9 
to 
A. 51,500 ft/h B. 554,000 ft/h C. 9230 ft/h D. 154 ft/h
Provide an appropriate response.Let ?I and ?E be right angles, and suppose 
. Prove that the diagonals 
and 
are perpendicular.
What will be an ideal response?
Write the improper fraction as a mixed number or an integer.
A. 4
B. 6
C. 5
D. 5
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. 0.80 watt per square meter B. 0.20 watt per square meter C. 0.10 watt per square meter D. 0.40 watt per square meter