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If P  dollars is invested in a savings account that pays 5% annual interest, compounded continuously, in how many years will the account value be equal to 2P  dollars?

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ln begin parenthesis 2 to the power of 20 end parenthesis years

Correct Answer: 
Yes

ln begin parenthesis 2 to the power of 5 end parenthesis years

Correct Answer: 
No

10 years

Correct Answer: 
No

20 years

Correct Answer: 
No