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aliina [53]
3 years ago
8

The expression 1.021)^3t represents the interest that a credit union pays on a savings account.

Mathematics
1 answer:
daser333 [38]3 years ago
3 0

Answer:

Yearly interest rate would be 6.3%

Step-by-step explanation:

Since, the amount formula of an investment after t years is,

A=P(1+\frac{r}{n})^{nt}

Where,

Expression (1+\frac{r}{n})^{nt} represents change factor in the investment,

In which, r = annul rate or yearly interest rate,

n = number of compounding periods,

t = number of years,

If change factor is (1.021)^{3t} or (1+0.021)^{3t}

Then,

By comparing,

\frac{r}{n}=0.021, n = 3

\implies r = 3\times 0.021= 0.063 = 6.3\%

Hence, yearly interest rate would be 6.3%

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I Need Help On This
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Answer:

The first blank: not equal

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6 0
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The population of a colony of bacteria can be modeled by the function P(t) = 19,300(5)^t, where t is the elapsed time
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