# Math Help - how to find average value over Rectangle

1. ## how to find average value over Rectangle

Find the average value of over the rectangle R with vertices .
this is how i set up, but turn out that it was wrong. pls someone help.

Area = bh = 6x2 = 12

$f_{ave} =1/12 \int_{0}^{2}\int_{-3}^{3} 3x^4y^3 dxdy$ what's is wrong?

2. Originally Posted by zpwnchen
this is how i set up, but turn out that it was wrong. pls someone help.

Area = bh = 6x2 = 12

$f_{ave} =1/12 \int_{0}^{2}\int_{-3}^{3} 3x^4y^3 dxdy$ what's is wrong?
Nothing's wrong. You're probably making an error in the calculation itself.

3. Yeh you're right! I found the error and got it right. thank you so much