A chocolate factory uses 1/6 of a bag of cocoa butter in each packet of chocolate. The factory used 1/3 of a bag of cocoa butter
1 answer:
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Answer:
= - 4 cm/s
Step-by-step explanation:
Let us revise the chain rule
If = a and
= b, then
=
÷
=
∵ y = x² + 1
- Use the differentiation to find
∴ = 2x
∵ x = -1
- Substitute x by -1 in
∴ = 2(-1)
∴ = -2
∵ =
×
∵ = 2 cm/s
∴ = (-2) × (2)
∴ = - 4 cm/s
Step-by-step explanation:
using the quadratic formula......
