Betty sets up a lemonade stand and charges $1 per glass. It cost her $50 to set up the stand. Which function gives the profit, p
1 answer:
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Given:
x and y are both differentiable functions of t.
To find:
The value of .
Solution:
We have,
...(i)
At x=-1,
Divide both sides by 3.
Taking cube root on both sides.
So, y=2 at x=-1.
Differentiate (i) with respect to t.
Putting x=-1, y=2 and , we get
Divide both sides by -8.
Therefore, the value of is 36.