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Alchen [17]
3 years ago
7

Circle the prime numbers in the following list :27, 19, 37, 45, 63, 79

Mathematics
1 answer:
MariettaO [177]3 years ago
4 0

A prime number is a number that can't be divide by two numbers and get a whole number apart from itself and one.

So the following numbers are prime.

19, 37, and 79

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7 0
3 years ago
You invest $9000 with a 6% interest rate compounded semiannually. After 9 yrs, how much money is in your account?
astraxan [27]
\bf \qquad \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$9000\\
r=rate\to 6\%\to \frac{6}{100}\to &0.06\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{semi-annually, thus twice}
\end{array}\to &2\\

t=years\to &9
\end{cases}
\\\\\\
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