Fiona draws a circle with a diameter of 14 meters. What is the area of Fiona’s circle?
2 answers:
Answer:
The area of the circle is
Step-by-step explanation:
The formula for the area of a circle is :
To work this out you would first need to divide the diameter of 14 by 2, this gives you 7. This is in order for us to calculate the radius. The radius of a circle is the length from one side to the centre.
Now that we know the radius the next step is to multiply pi by the radius of 7 squared, this gives you 153.94. This is because in order for you to calculate the area you would substitute the values into the formula.
1) Divide 14 by 2.
2) Multiply pi by 7 squared.
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The constant of proportionality in terms of the cost per text is the coefficient of 
in the equation 
. Since the coefficient of is 0.25, the constant of proportionality in terms of the cost per text is 0.25.
Proportionality constants are usually expressed as fractions, so lets convert 0.25 to a fraction. To do that we are going to add the denominator 1 to our decimal, and then we will multiply both numerator and denominator by ten for every number after the decimal point:
Finally, we can simplify our fraction:
We can conclude that the constant of proportionality in text of the cost per text is 1/4
Proportionality constants are usually expressed as fractions, so lets convert 0.25 to a fraction. To do that we are going to add the denominator 1 to our decimal, and then we will multiply both numerator and denominator by ten for every number after the decimal point:
Finally, we can simplify our fraction:
We can conclude that the constant of proportionality in text of the cost per text is 1/4