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Jasten
14.11.2020 •
Mathematics
Using f(x) = 5x + 4 and g(x) = x - 3,find: 1. f(g(6)) 2. g(f(-7)) 3. f(f(8)) 4. g(f(x))
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Ответ:
Part 1):
Part 2):
Part 3):
Part 4):
Step-by-step explanation:
Considering the function
Part 1)
To evaluate
, you must find ![g(6)](/tpl/images/0898/8472/f645a.png)
so
Put x = 6
Then
Therefore,![f(g(6))=19](/tpl/images/0898/8472/7738c.png)
Part 2)
To evaluate
, you must find ![f(-7)](/tpl/images/0898/8472/49f06.png)
so
Put x = -7
Then
Therefore,![g(f(-7))=-34](/tpl/images/0898/8472/b6be9.png)
Part 3)
To evaluate
, you must find ![f(8)](/tpl/images/0898/8472/9e90d.png)
Put x = 8
Then
Therefore,
Part 4)
Evaluate
As
so
Therefore,
Ответ:
210
Step-by-step explanation: