Answer:
not sure
Step-by-step explanation:
Answer:
heres an example of substitution in a world problem. hope this helps on some other problens
Here is your question: 7/6 divided by 2.

÷

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Multiply and you get
Let distance be s and velocity be v
s = 5t⁴ - 10t² + 6
We know velocity is the change in distance per unit time, so
v = ds/dt
v = 20t³ - 20t