Find the expected value.In a game, you have a 
probability of winning 
and a 
probability of losing 
What is your expected winning?
A. -$1.36
B. $6.47
C. -$3.91
D. $2.56
Answer: A
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Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Solve the problem.A child has 42 quarters and 70 dimes. The child wishes to stack the coins so that each stack has the same number of coins, and each stack contains only one kind of coin. What is the largest number of coins that the child can place in each stack?
A. 42 B. 70 C. 210 D. 14
Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire of constant density that lies along the first-quadrant portion of the circle 
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= 0, 
= 
Use the given graph of the quadratic function f to write its formula as 
.
A. f(x) = -(x - 3)2 - 3 B. f(x) = (x - 3)2 - 3 C. f(x) = (x - 3)2 + 3 D. f(x) = (x + 3)2 - 3