Answer:
At ; I = 3, P is at maximum
Step-by-step explanation:
P ( I ) =
at I = 3
P" ( I ) < 0
therefore at I = 3 the value of P( I ) is at maximum
attached below is the detailed solution
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Answer:
<h2>12.56 m</h2>Step-by-step explanation:
The formula of a circumference of a circle:
<em>d</em> - <em>diameter</em>
<em />
We have <em>d = 4m</em>.
Substitute:
Use 3.14 for π:
C 
$12
If the cost c is at least $12 then it could be equal to 12, or could also be a cost greater than $12. So, c is greater than or equal to 12, expressed as <span>c $12</span>
If the cost c is at least $12 then it could be equal to 12, or could also be a cost greater than $12. So, c is greater than or equal to 12, expressed as <span>c