Simplify the expression.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
Mathematics
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Use an Euler diagram to determine whether the argument is valid or invalid.Some cars are considered sporty.Some cars are safe at high speeds.Some sports cars are safe at high speeds.
A. Valid B. Invalid
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Find the value of the expression.log8(88.2)
A. 8 B. 25,429,504.2 C. 8.2 D. -8.2
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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 feet from a light is 4 foot candles, find the intensity on a screen 20 feet from the light.
A. 
foot-candles
B. 1
foot-candles
C. 
foot-candles
D. 2 foot-candles
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Simplify the expression. Assume that variables represent nonzero numbers.(w6z)4(w5z6)
A. w29z10 B. w120z24 C. w11z10 D. w15z10
Mathematics