Use the graph to find the indicated function value.y = f(x). Find f(3).
A. 9
B. 3
C. 1.5
D. -3
Answer: C
Mathematics
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Rationalize the denominator.110
A. 
B. 
C. 
D. 
Mathematics
Express 4000 in scientific notation.
a. 4 ð 100 b. 4 ð 101 c. 4 ð 102 d. 4 ð 103 e. 4 ð 104
Mathematics
Solve the variation 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 feet from a light is 4 foot candles, find the intensity on a screen 20 ft from the light.
A. 2 foot-candles
B. 1
foot-candles
C. 
foot-candles
D. 
foot-candles
Mathematics
Determine the real solutions to the system of nonlinear equations.2x2 + y2 = 173x2 - 2y2 = -6
A. (1, 3), (-1, -3) B. (2, 3), (2, -3), (-2, 3), (-2, -3) C. (1, 3), (1, -3), (-1, 3), (-1, -3) D. (2, -3), (-2, 3)
Mathematics