The question is:
What i have done so far is that i have solved for y where . I have also solved the triangle on top of the rectangle where the . (its x times root 3)A gable window has the form of a rectangle topped by an equilateral triangle, the side of which are equal to the width of the rectangle. Find the maximum area of the window if the perimeter is 600cm.
I am just not sure what to do from there.
Thank you in advance!
...so ...imputting that into your area equation you get ..differentiating we get which equals zero at x is equal to 100...now to check if its a max we find the second derivative ...which is always negative...therefore is a max...substitute it into your perimeter equation and get x