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Reptile [31]
3 years ago
14

Let f(x)=3x=5 and g(x)=-4+7 find (f*g)(-4)

Mathematics
1 answer:
Charra [1.4K]3 years ago
4 0

Answer:

a

Step-by-step explanation Option 1:

Plug  

4

into  

g

(

x

)

:

g

(

x

)

=

−

2

(

4

)

−

6

=

−

8

−

6

=

−

14

 

Then plug  

g

(

x

)

into  

f

(

x

)

:

f

(

x

)

=

3

(

−

14

)

−

7

=

−

42

−

7

=

−

49

Option 2:

Plug  

g

(

x

)

into  

f

(

x

)

:

f

(

x

)

=

3

(

−

2

x

−

6

)

−

7

=

−

6

x

−

18

−

7

=

−

6

x

−

25

Finally plug  

4

into our current  

f

(

x

)

:

f

(

x

)

=

−

6

(

4

)

−

25

=

−

24

−

25

=

−

49

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