I have a solution here wherein instead of A(3) it is A(4):
<span>Plugging the numbers into the equation we get 4x4x3.14 which is 50.24
</span>
I hope you could use my method for solving the A(4) in solving the A(3)
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Bi meaning two, it splits an angle into two equal parts
Answer:
Step-by-step explanation:
We have been given that the area 
(in square meters) of a circular algae colony with radius r meters is given by 
. The radius 
(in meters) after t minutes is given by 
. We are asked to write the formula for the area 
(in square meters) of the algae colony after t minutes.
This problem is based on composite functions, in which function represents radius of circle after t minutes.
To write the formula for the area (in square meters) of the algae colony after t minutes, we need to substitute 
in area formula .
Therefore, our required formula would be .
Answer:
50.5
Step-by-step explanation:
Sooo first we calculate edf. 11/2= 5.5, 5.5x5=27.5
And then we do the other part.9/5=4, and 4x11.5=46, and we need to cut that in half cuz it’s a triangle 46/2=23. We add up the rectangle and the triangle: 27.5+23=50.5
