4. A man who is 40 years old wants to begin exercising daily. Calculate his target heart
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Circles (represented by their equations in general form) in ascending order of their radius lengths can be arranged as first-fifth-second-forth-third-seventh-sixth.
<h3>What is the equation of circle?</h3>The equation of the circle is the equation which is used to represent the circle in the algebraic equation form with the value of center point in the coordinate plane and measure of radius.
The standard form of the equation of the circle can be given as,
Here (h,k) is the center of the circle and (r) is the radius of the circle.
Lets arrange the first equation, in standard form of equation of circle as,
The radius of this circle is √(3).
Lets arrange the second equation, in standard form of equation of circle as,
The radius of this circle is √(18).
Lets arrange the third equation, in standard form of equation of circle as,
The radius of this circle is √(45).
Similarly, radius of the forth, fifth, sixth and seventh circle is √(23), √(5), √(117) and √(46) units.
Hence, the circles (represented by their equations in general form) in ascending order of their radius lengths can be arranged as first-fifth-second-forth-third-seventh-sixth.
Learn more about the equation of circle here;