Solve. Graph the solution on a number line, and express it in interval notation.4x + 2 ? 3x + 11
A. x ? 9, (-?, 9]
B. x ? 9, [9, ?)
C. x < 4, (-?, 4)
D. x > 4, (4, ?)
Answer: B
Mathematics
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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 2 foot candles, find the intensity on a screen 15 ft from the light.
A. 
foot-candles
B. 
foot-candles
C. 2 foot-candles
D. 1
foot-candles
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The graph of the function y = f(x) is given below. Sketch the graph of y = 
.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation or operations.(6 - 9)2(3 - 5)3
A. -72 B. -36 C. 1 D. 72
Mathematics
Determine whether the two given lines are parallel. 3x - 2y = 12 2x + 3y = 12
A. Yes B. No
Mathematics