Thursday

August 21, 2014

August 21, 2014

Posted by **azeem** on Friday, July 5, 2013 at 8:54am.

- Calculus - linearization -
**MathMate**, Friday, July 5, 2013 at 11:03amSince the exact increase can be calculated readily by

π(r2²-r1²)

=π(44.4²-44²)

=35.36π

I assume you are working on linearization in calculus.

Let

A(r)=πr²

A'(r)=2πr

Approximate increase in area

=A'(r)Δr

=2πr*Δr

=2π(44)(0.4)

=35.2π (approximately)

**Related Questions**

Math - Please explain how this is set up and how to work it. thanks A ...

math - A circular pie with a diameter of 9.8 inches is cut into 7 equal slices...

math problem - The diameter of a circle is increased by enough to increase the ...

math - Find the percent increase in the area of a circular pizza if the radius ...

math - Find the approximate value of the volume of the right circular cone of 20...

geometry - Find the surface area of each of the following a cube that is 4 cm by...

7th Grade Math - Find the area of the circle described. Use pi= 22/7. Diameter= ...

Maths - A flat circular disc, of radius R, can be modelled as a thin disc of ...

math - A floor consists of parallel planks which have a two foot width. A ...

math - Metal discs for pet collars have a diameter of 4cm. Each disc is 0.1cm ...