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Answer: Option 'A' is correct.
Step-by-step explanation:
Since we have given that
The ocean floor directly beneath the boat is at a depth of = 180 meters
Submarine is at an elevation when it is above the ocean's surface = 2 meters
Total distance submarine needs to descends at a constant rate = 180+2=182 m
Rate of submarine descends = 0.4 meters per second.
Time taken by a scientist spend descending after boarding the submarine is given by
so, it must be less than 455 seconds.
therefore, it becomes x<455.
Hence, Option 'A' is correct.
Answer:
Step-by-step explanation:
The average rate of change on the interval (5, 6) is 9. So the correct option is D.
<h3>How to find the average rate of change on the interval?</h3>
Here we want to find the average rate of change of f(x), the function on the table, on the interval (5, 6).
This is just:
I we look at the table we see that:
This is a system of equations.
If we subtract the second and first functions, we get:
From that we take two relations:
Now we can replace these two in the last equations so we get:
Now that we know the value of a:
The quadratic equation is:
Evaluating this in x = 6 we get:
And from the table we know that f(5) = 17, then the average rate of change is:
The correct option is D.
If you want to learn more about average rates of change:
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