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March 28, 2015

March 28, 2015

Posted by **Ashley** on Tuesday, January 29, 2013 at 6:10am.

maximum power in watts =

- Math -
**Writeacher**, Tuesday, January 29, 2013 at 7:16amYour umpteen posts have been removed.

Once you write up**YOUR ATTEMPT**at each problem, please re-post, and someone here will be happy to comment.

- Math -
**Ashley**, Tuesday, January 29, 2013 at 8:15amOh, sorry I didn't realise that I needed to provide my answer. I just want to check to see if I obtain the correct answer.

My answer is:

P=110i-19i^2

P'=110-38i

0=110-38i

i=2.8947

P"=-38 therefore a max

Max Power in watts = 2.8947

- Math -
**Writeacher**, Tuesday, January 29, 2013 at 8:26amPlease re-post your questions along with your answers, and a math teacher will check your work.

Also there's no need to switch user names.

- Math -
**bobpursley**, Tuesday, January 29, 2013 at 12:54pmHmmm. I agree with i at 2.89 amps

Powermax=put i in the formula for power given, and you have it.

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