If f(x)=2x+4 and g(x)=x-5, find (f-g)(x)

[

f

o

g

]

(

x

)

=

2

x

2

−

1

Explanation:

f

(

x

)

=

2

x

+

5

,

g

(

x

)

=

x

2

−

3

then,

[

f

o

g

]

(

x

)

=

2

(

g

(

x

)

)

+

5

=

2

(

x

2

−

3

)

+

5

[

f

o

g

]

(

x

)

=

2

x

2

−

6

+

5

[

f

o

g

]

(

x

)

=

2

x

2

−

1

Step-by-step explanation:

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.