⚠️⚠️⚠️⚠️Helppppp⚠️⚠️⚠️⚠️

Mathematics

2 answers:

ss7ja [257]2 years ago

8 0

Hello!

I am 99.9% sure the answer is D! The reason is literal equations use primarily of letters. An example of this would be (A=πr2) or maybe (v=Dt) to understand a little bit better.

~(˘▾˘~)

const2013 [10]2 years ago

3 0

Answer:

Step-by-step explanation:

b. i think so (:

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$A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\dotfill &1000\\ P=\textit{initial amount}\dotfill &250\\ r=rate\to 16\%\to \frac{16}{100}\dotfill &0.16\\ t=\textit{elapsed time} \end{cases} \\\\\\ 1000=250(1.16)^t\implies \cfrac{1000}{250}=1.16^t\implies 4=1.16^t \\\\\\ \log(4)=\log(1.16^t)\implies \log(4)=t\log(1.16) \\\\\\ \cfrac{\log(4)}{\log(1.16)}=t\implies \stackrel{\textit{about 9 years and 4 months}}{9.34\approx t}$