The intensity I of light (in lumens) at a distance x meters below the surface is given by I = Iok x , where Io is the intensity at the surface and k depends on the clarity of the water. At one location in the Arctic Ocean, Io = 9 and k = 0.7. Find the intensity at a depth of 6 meters. Round your answer to two decimal places.
?

A. 1.05 lumens
B. 2.70 lumens
C. 1.06 lumens
D. 6.30 lumens
E. 31.55 lumens


Answer: C

Mathematics

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Construct a truth table for the statement.(p ? q) ? (~p ? q)

A.

TTT
TFF
FTT
FFF

B.
TTF
TFT
FTF
FFF

C.
TTT
TFT
FTT
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D.
TTT
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