Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.
A. -63
B. -1845
C. -549
D. 72
Answer: C
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Provide an appropriate response.Choose the example that correctly shows that the stated case can occur. The sum of two irrational numbers may be a rational number.
A. 
+ 
= 2
B. 
+ 
= 31
C. 
+ (-
) = 0
D. 
+ (-
) = 1
The graph of a piecewise-defined function is given. Write a definition for the function. 
A. 
B. 
C. 
D. 
Solve.Let's imagine that in 2001, a surgeon performs the first brain transplant, the only transplant performed that year. If in 2010, there are 686 brain transplants, find an exponential growth function that fits the data. (Round decimals to three places.)
A. N(t) = 686e0.726t, where t is the number of years after 2001. B. N(t) = e0.726t, where t is the number of years after 2010. C. N(t) = e0.726t, where t is the number of years after 2001. D. N(t) = e0.726, where t is the number of years after 2001.
Solve the problem.The annual rainfall in Maine is a random variable with probability density function defined by 
for x in 
Find the probability that the rainfall is greater than the mean.
A. 0.549 B. 0.512 C. 0.500 D. 0.553