Thursday

January 29, 2015

January 29, 2015

Posted by **Dewayne** on Saturday, March 23, 2013 at 10:12pm.

What I have so far...

radius =r

keight =h

V=πr²h

125/πr²=h

SA = πr² + 2πr(h)

= πr² + 2πr(125/πr²)

SA =πr² +250/r

- Calculus -
**Steve**, Saturday, March 23, 2013 at 11:18pmso far so good:

A = pi r^2 + 250/r

dA/dr = 2pi r - 250/r^2

so, when is dA/dr = 0?

**Answer this Question**

**Related Questions**

Calculus - An open topped cylinder has a volume of 125 cubic inches. Express the...

Calculus - Find the radius, volume, and hieght of the right- circlar cylindar ...

Calculus-Optimal Form: need help... please - Suppose you are designing a coffee ...

calculus - an open topped cylingrical pot is to have a volume of 125 cm^3. ...

Calculus - An open-topped cylindrical pot is to have volume 125 cm3. Determine ...

calculus - An open-topped cylindrical pot is to have volume 125 cm3. Determine ...

Math - The size to which a pumpkin grows while on the vine is probably ...

algebra/geometry please correct me - You need to make a soda can with a volume ...

math - surface area of a rightcircular cylinder. The area of a right circular ...

Math - 5) A frustrum of a cone has the following dimensions: height = 6 in, ...