The following graph shows the depths of a submarine at certain times after it leaves
Chapter 3, Problem 3.1.28(choose chapter or problem)
The following graph shows the depths of a submarine at certain times after it leaves port. Use the graph to answer 2528. See Example 3.d Depth of submarine (ft) 2,500 2,000 1,500 1,000 500 0 500 Hours after leaving port 1234 567 8 a. How long does it take the sub to first reach feet in depth?b. Approximate the time when the sub reaches feet in depth for the second time
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