Write the following in interval notation.{x| -9 < x ? -3}
A. [-9, -3]
B. (-9, -3]
C. [-9, -3)
D. (-9, -3)
Answer: B
Mathematics
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Provide an appropriate response.Round 62.488 to the tens place.
A. 60 B. 62 C. 70 D. 62.5
Mathematics
Use a sum or difference identity to find the exact value.sin 
A. 
B. 
C. 
D. 
Mathematics
Find f-1(x) for the following one-to-one function f.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
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
Mathematics