<span>The curve equation y3 + 3yx - x3 = 9</span>
Differentiate implicitly with respect to x.
<span>3y2(dy/dx) + 3[y + x(dy/dx)] - 3x2 = 0</span>
<span>3y2(dy/dx) + 3y + 3x(dy/dx)] = 3x2</span>
<span>(dy/dx)(3y2 + 3x) = 3x2 - 3y</span>
<span>dy/dx = 3(x2- y)/3(y2 + x)</span>
<span>dy/dx = (x2- y)/(y2 + x)</span>
Answer:
2nd option is the correct answer.
Step-by-step explanation:
Therefore, by geometric mean postulate:
Answer: $3.50 per week
Total money needed: $32
Money saved already: $18
$32 - $18 = $14
Money left to save: $14
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Money left to save: $14
Time left to save: 4 weeks
$14 / 4 = $3.50 per week
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
Answer:
B
Step-by-step explanation: