Wednesday
November 26, 2014

Homework Help: More Rational Exponents!

Posted by Brady on Friday, February 14, 2014 at 8:22pm.

1. The optimal height h of the letters of a message printed on pavement is given by the formula . Here, h= (0.00252d^(9/4))/e d is the distance of the driver from the letters and e is the height of the driverís eye above the pavement. All of the distances are in meters. Explain how to find h when d = 90 m and e = 1.4 m.

2.Simplify.

(27a^(-6) )^(-2/3)

For 2 I got 1/(9a^4 )as my answer, but can someone again please check this.

For 1 I really do not know, I have been trying to figure out for a while.

Please check and help me for 1, and please help with 2. 1 is from another thing, but no one has answered it.

I will appreciate the help. Also, please try to answer these two as soon as possible.

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