1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
Which is a solution to the equation 6x + y = –4?
KatRina [158]
1. Make y the subject of the equation
y = -4 - 6x


2. Substitute values for guess and check
8 = -4 - (6 x 2)
8 = -4 - 12
This is incorrect.

2 = -4 - (6 x 1)
2 = -4 -6
This is incorrect.

-10 = -4 - (6 x 1)
-10 = -4 -6
This is correct.

The correct answer is C.
7 0
4 years ago
Explain how to factor when the leading coefficient is 1.
Bas_tet [7]

Answer:  C) Find the factors of c that add up to b.

==============================================

Explanation:

If we want to factor something in the form x^2+bx+c, then we look for two numbers that

  • Multiply to c
  • Add to b

-------------

Let's look at a specific example

Consider factoring x^2+5x+6

We need to find two numbers that...

  • Multiply to c = 6
  • Add to b = 5

Through trial and error, you should find the two numbers to be 3 and 2. This means it factors to (x+3)(x+2). The order of the factors doesn't matter.

You can use the FOIL rule or the box method to expand out (x+3)(x+2). You should get x^2+5x+6 again.

3 0
2 years ago
A shop has a sale of
maw [93]

Answer:

19.80

Step-by-step explanation:

use the is/of x %/100 method.

33/100 x   x/60

1980/100x = 19.80$

5 0
3 years ago
If the volume of the pyramid shown is 12cm^3, what is its height?
BabaBlast [244]
I think it’s either C or D
6 0
3 years ago
Read 2 more answers
If the tree grew 4 feet in each year how many feet would it have if 50 years gone by
vagabundo [1.1K]
Pretty sure 200feet but its kinda easy
4 0
3 years ago
Other questions:
  • 1.
    6·1 answer
  • △DEF has vertices D (2,2), E (-2,-1), and F (-3,5). Complete the following charts indicating the location of △D′E′F′ and △D″E″F″
    11·1 answer
  • Figure is not d
    13·1 answer
  • Can you please Simplify 4a+7b+5a-b
    14·1 answer
  • Estimate the product 57×29
    12·1 answer
  • In a poll sponsored by Nick's Corn Farm, 1300 randomly selected adults were asked to select their favorite vegetable. The favori
    5·1 answer
  • Ugh Once again I need help please help!
    13·2 answers
  • Gina has a $50 gift card to a bagel shop. Each Friday, she purchases breakfast for $6. She created a graph to represent the amou
    7·1 answer
  • Order the side lengths HI, IK, HJ, IJ, and KJ from least to greatest.​
    7·1 answer
  • If g(x) =− 3x^2 + 5x − 7, determine g(− 3).
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!