A multiple-choice test offers four possible answers for every question, of which only one is the correct answer. A student guesses on five of the questions. What is the probability that she gets exactly two of the guessed questions correct?
What will be an ideal response?
0.263672
Mathematics
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Graph the function.f(x) = ln x - 4
A. 
B. 
C. 
D. 
Mathematics
Express the interval in set builder notation and graph the interval on a number line.(-3, 4)
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Mathematics
Solve the equation.a + 1 = 13
A. 14 B. -12 C. 12 D. -14
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 2 foot candles, find the intensity on a screen 15 ft from the light.
A. 1
foot-candles
B. 
foot-candle
C. 
foot-candle
D. 2 foot-candles
Mathematics