The population of a town after t years is represented by the function f(t)=7,248(0.983)t.
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Hi there! :)
Find the central angle using a ratio in regards to angle and circumference.
The radius is 27 units, so use the following equation to calculate circumference:
C = 2rπ
Therefore:
C = 2(27)π = 54π
Since we have the total circumference, we can write the following proportion:
Cross multiply:
54πx = 6480π
Divide both sides by 54π to isolate for x:
x = 120°
Let's expand first:
Simplify (combine like terms):
So, your most simplified answer is 18z(z-1) or 18z²-18z.
Simplify (combine like terms):
So, your most simplified answer is 18z(z-1) or 18z²-18z.