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
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Solve the following simultaneous equations using the addition/subtraction method.
2x + y = 6 x + 2y = 3
Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the semicircle y = 
if the density of the wire is 
A. 
= 
?, 
= 
?
B. 
= 0, 
= 
?
C. 
= 0, 
= 
?
D. 
= 
?, 
= 
?
Approximate, to the nearest whole number, the volume of the cone satisfying the given conditions.radius = 9 in., height = 4 in.
A. 678 in.3 B. 509 in.3 C. 339 in.3 D. 75 in.3
Use synthetic division to divide f(x) by x - k for the given value of k. Then express f(x) in the form 
for the given value of k.f(x) = -5x4 + x3 + 2x2 + 3x - 1; k = 1
A. f(x) = (x - 1)(-5x3 + 6x2 - 4x - 1) B. f(x) = (x - 1)(-5x3 - 4x2 - 2x + 1) C. f(x) = (x - 1)(-5x3 + 4x2 - 2x - 1) D. f(x) = (x - 1)(-5x3 + 4x2 + 6x + 9)