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1 answer:
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Answer:
A
Step-by-step explanation:
We need to use the distance-rate-time formula here: , where d is distance, r is rate, and t is time.
Here, the distance traveled is actually m, while the rate is 45 and the time is h. So, just plug these in:
Thus, the answer is A.
Hope this helps!
Answer:
4. maximum: 22; minimum: 1
5. maximum: 24; minimum: -6.25
6. maximum: 49.7; minimum: 39.625
Step-by-step explanation:
I find a graphing calculator to be "appropriate technology" for answering questions of this sort. For the first and last questions, the extremes are the values of the function at the ends of the intervals specified.
For the second question, the parabola opens upward and the vertex is in the given interval, so the vertex is the minimum. The maximum is found at the end of the interval that is farthest from the vertex.
