Respuesta :
Answer:
20%
Step-by-step explanation:
To find growth rate in compound growths, we can look at a general formula. Shown below:
[tex]f(x)=a(b)^x[/tex]
Where a is the initial amount
b is the growth factor
x is time
In our formula given, we see that b = 1.2
What growth does this represent??
Well, the amount that is OVER 1, is the growth. Simple!
So, we take the value of b and then subtract 1 from it. Then we multiply that answer with 100 to get a PERCENTAGE GROWTH RATE. Let's do this on b:
b = 1.2
b - 1 = 1.2 - 1 = 0.2
0.2 * 100 = 20
Which is 20%!
So the growth rate is 20%
Answer:
B
Step-by-step explanation:
An exponential function may be given by:
f(x) = A(1+r)^x
A is the initial amount and r is a decimal representing the growth rate.
We can see that 1+r = 1.2, and we solve for r:
1 + r = 1.2
r = 0.2
The growth rate is 0.2, or 20%