If e^(rt) is 3, then taking logarithms tells you
... rt = ln(3)
So, the time to triple the amount is
... t = ln(3)/0.0275 ≈ 39.95 . . . . years
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The working out that is shown in the picture appears to be correct.
Answer:
2 1/4 cups of bleach
Step-by-step explanation:
4.5/10=0.45
0.45×5=2.25
The area of the trapezoid would be
<span>(10 m) (15m + 19m)/2 = 170m^2. </span>
<span>The area of the circle would be pi*(3m)^2 </span>
<span>= (3.14)(9m^2) = 28.26 m^2. </span>
<span>Subtract the 28.26 from the 170.00 and you get 141.74...</span>
The population of mastertown is 23,000 in 2012.
Assume that the increase of the population has a rate of 2% increase annually. Writing an equation model will help us find the number of population in the coming years. Here is the equation model using the geometric sequence formula.
An = A1 * r^(n-1)
Population = starting population 2012 * 0.02^[(year - 2012) - 1]
