Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. 2
B. 2x2y2
C. 2x2y2
D. 4x4y4
Answer: C
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Find the first four terms of the binomial series for the given function.
-2
A. 1 - 
x + 
x2 - 
x3
B. 1 - 
x + 
x2 - 
x3
C. 1 - 
x + 
x2 - 
x3
D. 1 - 
x + 
x2 - 
x3
Solve the rational equation.
= 
A. {0} B. {-4} C. {4} D. ?
Use the method of natural frequencies to find the indicated probability.Pierre has three coins one of which is biased so that it turns up tails 60% of the time. If he randomly selects one of the coins, tosses it three times, and obtains three tails, what is the probability that this is the biased coin?
A. 0.44 B. 0.216 C. 0.333 D. 0.464
Find the indicated probability. Leave your answer in fractional form unless otherwise indicated.If a balanced six-sided die is rolled 40 times and 2 comes up every time, what is the probability that 2 comes up on the next roll?
A. 
B. 1
C. 
D. 