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anonymous
 5 years ago
I'm having a hard time comprehending this/:
Can someone explain ?
Find the amount in a continuously compounded account for the given conditions.
Principal: $5000
Annual Interest Rate: 6.9%
Time: 30yr
anonymous
 5 years ago
I'm having a hard time comprehending this/: Can someone explain ? Find the amount in a continuously compounded account for the given conditions. Principal: $5000 Annual Interest Rate: 6.9% Time: 30yr

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0To find compounding interest use the formula P*e^(rt), where P is the principal, r is the rate, and t is time.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You were probably given a formula for anually compounded interest as being something like \(A(t) = A_0*e^{rt}\)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Where \(A_0\) is the principal (or amount you start with) and r is the rate as a decimal number (e.g. 6.9% = .069).

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0And t is the number of years.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so would this A(t)=5000xe^.069(30) be correct.. ?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Just make sure you multiply the year and rate THEN raise e to that product. Don't accidentally raise e to the rth power then multiply by t. So it would be e^(.069*30), not e^.069*30.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes. \(A(t) = 5000 * e^{.069*30} = 5000 * e^{2.07} = 5000 * 7.9248 = 39624.11\)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Is this one the same ? Hg197 is used in kidney scans. It has a halflife of 64.128 h. Write the exponential decay function for a 12mg sample. Find the amount remaining after 72 h.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Not quite the same. But similiar. You were probably given an equation for exponential decay?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no/: i've just been emailed the assignments . i think you've helped me more than my teacher has _ .

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yuppp pretty much ! =)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Well ok, exponential decay has the form \(A(t) = A_0*2^{\frac{t}{t_{halflife}}}\)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0err The exponent on the 2 should be \[\frac{t}{t_{halflife}}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0And \(A_0\) is again the initial amount.
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