If the population quadruples every period say hour, that means the "rate of growth" is 300%, so whatever the current amount, increased by 3 times as much is 4 times the current amount, or a quadrupled amount.

$\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\to &74\\
r=rate\to 300\%\to \frac{300}{100}\to &3.00\\
t=\textit{elapsed time}\\
\end{cases}
\\\\\\
A=74(1+3)^t\implies A=74(4)^t$

6 0

2 years ago

Charlie know that 3 blocks are needed to make a tower that is 0.5 foot high. How many blocks will he need to make a tower that i

vitfil [10]

Answer:

6 feet

Step-by-step explanation:

that is the answer

6 0

2 years ago

Stronomers measure large distances in light-years. One light-year is the distance that light can travel in one year, or approxim

Komok [63]

This is one of those problems where you don't actually have to know anything. The only answer that is any combination of the two given numbers is the last one:
.. 8.4672*10¹³ miles

_____
That result is the product of 5.88*10¹² and 14.4.

4 0

2 years ago