For the set, list all elements that belong to the specified set.{19, 
, -8, 0, 0.85}; Irrational numbers
A. 
, 0, 0.85
B. 
, 0.85
C. 
D. 
, -8
Answer: C
Mathematics
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The graph of a one-to-one function f is given. Sketch the graph of the inverse function f-1, on the same set of axes. Use a dashed line for the inverse.
A. 
B. 
C. 
D. 
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Graph the function.y = 3 tan(2x)
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The intensity I of light varies inversely as the square of the distance D from the source. If the intensity of illumination on a screen 5 ft from a light is 3 foot candles, find the intensity on a screen 20 ft from the light.
A. 
foot-candle
B. 
foot-candle
C. 1
foot-candles
D. 2 foot-candles
Mathematics
Graph the function.f(x) = 2- x - 1
A. 
B. 
C. 
D. 
Mathematics