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lex68259100
25.03.2020 •
Mathematics
Suppose f ( a ) = 64.25 and the average rate of change of f over the interval from x = a to x = a + 199 is 0.108. What is the value of f ( a + 199 ) ? (Hint: think of the average rate of change as a constant rate of change.)
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Ответ:
Step-by-step explanation:
Here we have , Suppose f ( a ) = 64.25 and the average rate of change of f over the interval from x = a to x = a + 199 is 0.108. We need to What is the value of f ( a + 199 ) . Let's find out:
Rate of change of a function in interval [a,b] is given by:
⇒![\frac{f(b)-f(a)}{b-a}](/tpl/images/0562/5578/1b990.png)
Here we have the following according to info given in question ,
⇒![\frac{f(a+199)-f(a)}{(a+199)-a} = 0.108](/tpl/images/0562/5578/d7c67.png)
⇒![\frac{f(a+199)-64.25}{199} = 0.108](/tpl/images/0562/5578/1a666.png)
⇒![(199)\frac{f(a+199)-64.25}{199} = 0.108(199)](/tpl/images/0562/5578/9a05a.png)
⇒![f(a+199)-64.25 =21.492](/tpl/images/0562/5578/4726b.png)
⇒![f(a+199)=64.25 +21.492](/tpl/images/0562/5578/1736d.png)
⇒![f(a+199)=85.742](/tpl/images/0562/5578/f5c6c.png)
Therefore ,
.
Ответ: