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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Evaluate the expression.(-3)2
A. 9 B. 6 C. -9 D. -6
Mathematics
Find the arc length parameter along the curve from the point where t = 0 by evaluating 
r(t) = (etcos t)i + (etsin t)j + 5etk
A. 
et - 3
B. 
et - 
C. 3
et - 
D. 3
et - 3
Mathematics
Solve. Write a mixed numeral for the answer.At a track and field event, an athlete recorded the following heights at the high jump: 84
in., 83
in., 83
in., and 85 in. Find the average of the four jumps.
A. 84 in.
B. 84
in.
C. 84
in.
D. 84
in.
Mathematics
Find all solutions by factoring.14x2 + 16x = 0
A. - 
, -16
B. - 
, 16
C. - 
, 0
D. 0
Mathematics