3 years ago

Give the slope-intercept form of the equation of the line that is perpendicular to –7x – 8y = 12 and contains P(–3, 1)

Mathematics

2 answers:

svp [43]3 years ago

6 0

The answer is B since it’s perpendicular

Usimov [2.4K]3 years ago

4 0

Answer is b. :) :) :)

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226Ra has a half-life of 1599 years. How much is left after 1000 years if the initial amount was 10 g?

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$\bf \textit{Amount for Exponential Decay using Half-Life}\\\\
A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{initial amount}\to &10\\
t=\textit{elapsed time}\to &1000\\
h=\textit{half-life}\to &1599
\end{cases}
\\\\\\
A=10\left( \frac{1}{2} \right)^{\frac{1000}{1599}}$