Answer:
or 



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Answer:
The value of x component changes at a rate of
units per second
Step-by-step explanation:
We are given that 
Differentiating on both sides with respect to time we get

It is given that
Solving for
we get

The discount would be $4.32, and the total after the discount would be $19.68.
Answer:tha and at
Step-by-step explanation:
because of that mha and tha are right angles