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Kay [80]
3 years ago
6

10 points if you answer this

Mathematics
2 answers:
ratelena [41]3 years ago
8 0
1. Square root of 5(2.236),
2. 2.36
3. 2 2/5(2.4)
Ivan3 years ago
6 0

Answer:

sqaure root 5 , 2.36 , 2 2/5

Step-by-step explanation:

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3 years ago
The half-life of a certain substance is 20 years. How much of a 100 gram sample will be left after 20 years?
cluponka [151]

\bf \textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &100\\ t=\textit{elapsed time}\dotfill &20\\ h=\textit{half-life}\dotfill &20 \end{cases} \\\\\\ A=100\left( \frac{1}{2} \right)^{\frac{20}{20}}\implies A=100\left( \frac{1}{2} \right)^1\implies A=50

5 0
3 years ago
Read 2 more answers
Round 3,989.23655 to the nearest thousandth
inysia [295]
3,989.237
A thousandth = 1/1000 = 0.001
Round 4th decimal place = 5
5 and over is rounding up and under 5 rounds down so it would be 3,989.237
6 0
3 years ago
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