Answer:

<h3>The rate of change is <u>29/5</u>.</h3>
Answer:
6.5 hours
Step-by-step explanation:
He pays a flat fee of $65 and a rate of $40 per hour, we can set up the equation:

The solution to the problem is as follows:
<span>
cot θ = cos θ / sin θ </span>
<span>So sinθ * cot θ = cos θ after cancelling sin θ </span>
<span>Now cosθ + sin θ cot θ = cos θ + cos θ = 2 cos θ
</span>
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