3 years ago

I have no clue how to solve this. Please help!!!

Mathematics

1 answer:

Stels [109]3 years ago

8 0

Answer:

I believe the answer is c

Step-by-step explanation:

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So.. if you notice the picture below.. .the length is that much

thus $\bf A=lw\qquad \cfrac{1800-3w}{2}=l\implies 900-\cfrac{3w}{2}=l
\\\\\\
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take the derivative of A, zero it out, and then check the critica points for any maxima by using the first-derivative test