Question: 4. It is projected that, t years from now, the circulation of a local newspaper will be C(t) = 100t2 + 400t + 5000. Find

 4. It is projected that, t years from now, the circulation
of a local newspaper will be C(t) = 100t2 + 400t +

4. It is projected that, t years from now, the circulation of a local newspaper will be C(t) = 100t2 + 400t + 5000. Find how fast the circulation is increasing after 6 years. (4 marks)

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