thx

Re: Please help : Calculus 1 pre-exam review question

Queenisabella87 said:
7) A trough with a trapezoidal ends is 20 feet long, 2 feet high, 3 feet wide at the top and 2 feet wide at the bottom.

If water is being pumped in a rate of 2ft[sup:2rpeiw83]3[/sup:2rpeiw83] / min. How was fast is the depth increasing when the water is 1 foot deep.

(express your answer in inches / minute )




Thanks so much :), I'm struggling with this one. :roll:

Not just looking for the answer but explanation if possible, you are saving me so bad! :)
Click to expand...

First draw a sketch - and find the width of water level when the water is h foot deep. Then find the volume in terms of that depth.

Please share your work with us, indicating exactly where you are stuck - so that we may know where to begin to help you.
 
Re: Please help : Calculus 1 pre-exam review question

I'm not sure how to begin this problem, Sorry if I came off like I just wanted the answer.

Just stuck on this problem and was never really good with diagrams
 
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