Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Find sin 2?. tan ? = 
, ? lies in quadrant III.
A. 
B. - 
C. - 
D. 
Mathematics
Use modular arithmetic to find the answer.Fill in the blank so that the answer is nonnegative and the least possible number.-22 ? ___ (mod 9)
A. 5 B. -1 C. 7 D. 9
Mathematics
Write the standard form of the equation of the circle.Center (-9, 0), r = 12
A. (x - 9)2 + y2 = 144 B. x2 + (y - 9)2 = 12 C. x2 + (y + 9)2 = 12 D. (x + 9)2 + y2 = 144
Mathematics
Solve the equation for x. Write your answer as an improper fraction if necessary. 1.3x + 2.6 = 0.8x + 1.75
A. x = -1.87 B. x = -1.8 C. x = 0.588 D. x = -1.7
Mathematics