Pearson Algebra 2 Common Core, 2011
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Pearson Algebra 2 Common Core, 2011 View details
2. Properties of Exponential Functions
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Exercise 30 Page 448

Use the formula A(t)=P* e^(rt).

$ 1819.76

Practice makes perfect

We want to find the amount in a continuously compounded account for the given conditions. Principal:& $950 Annual Interest Rate:& 6.5 % Time:& 10 yearsTo do so, we will start by recalling the formula for continuously compounded interest. A( t)= P * e^(r t) In this formula, A( t) represents the amount in the account at time t, P represents the initial value of the account or the principal, r is the annual interest rate, and t is the time in years. Let's substitute the given values into the formula. Note that r should be expressed as a decimal, so 6.5 %=0.065.

A(t)=P* e^(rt)
A(t)= 950* e^(0.065( 10))
A(t)=950* e^(0.65)
A(t)= 950* 1.91554...
A(t)= 1819.76378...
A(t)≈ 1819.76

The amount after 10 years under the given conditions is approximately $ 1819.76.