$2500 is invested in an account at interest rate r, compounded continuously. Find the time required for the amount to double. (Approximate the result to two decimal places.)
?
?
A. 13.55 yr
B. 10.55 yr
C. 12.55 yr
D. 9.55 yr
E. 11.55 yr
Answer: E
Mathematics
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?
a = 3 in.
?
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, 
, 
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Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 7; r = -3
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