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ASHA 777 [7]
4 years ago
15

I need seven please help

Mathematics
1 answer:
Nataly [62]4 years ago
7 0

Answer:

3n + 6

Step-by-step explanation:

7.

three times a number: 3n

six more than three times a number: 3n + 6

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For f(x) = 4 - x and g(x) = 2x + x + 7, find the following functions.
Alenkinab [10]

Answer: a. -3(x+1), b. 19-3x, c. -9 and d. 13

Step-by-step explanation:

Lets begin with a.  (fog)(x)=f(g(x))

                                             =f(2x+x+7), Note that 2x+x+7=3x+7

                                             =f(3x+7) (where there  is x if the function f(x) we

                                               substitute x by 3x+7)

                                             =4-(3x+7) =4-3x-7=-3x-3= -3(x+1).

                            b. (gof)(x)=g(f(x))=g(4-x) (where there is x in the function  

                                                g(x) we substitute with 4-x)

                                             = 3(4-x)+7 = 19-3x

                          c.  (fog)(2) = -3(2+1) = -9 (we now substitute x with 2 in -3(x+1). )

                           d. (gof)(2) = 19-3(2)=19-6=13. (Again we now substitute x with

                                               2 in 19-3x)

3 0
3 years ago
What is the slope of the line shown in the graph? (2 points)
GalinKa [24]

Answer: the answer is -1

Step-by-step explanation:

The answer is negative 1 because I just guessed

3 0
3 years ago
X = 2y - 4<br> 7x + 5y = -66
madreJ [45]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Lin runs 5 laps around a track in 6 minutes how many laps per minute is that
pychu [463]

Lin runs 5 laps around a track in 6 minutes. It is 0.83 laps per minute

Step-by-step explanation:

Simple division will be used to solve the given problem.

We hvae to calculate laps per minute which will be calculated by dividing the number of laps by total time in minutes.

Given

Laps = l =5

Time = t =6 minutes

Then

Laps\ per\ minute = \frac{l}{t}\\=\frac{5}{6}\\=0.83\ laps\ per\ minute\\

Lin runs 5 laps around a track in 6 minutes. It is 0.83 laps per minute

Keywords: Unit rate

Learn more about unit rate at:

  • brainly.com/question/853574
  • brainly.com/question/8520610

#LearnwithBrainly

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3 years ago
Drag the tiles to the correct boxes to complete the pairs.
nikitadnepr [17]

Answer:

Step-by-step explanation:

6 0
2 years ago
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