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Marianna [84]
3 years ago
10

Please answer this question! Brainliest and thirty points!

Mathematics
2 answers:
NeX [460]3 years ago
6 0

Answer:

option c

Step-by-step explanation:

x + 9 - 4x =3 - 2x + 4

=>x + 2x - 4x =7 - 9

=>3x - 4x = -2

=>-x = -2

=>x = 2

FinnZ [79.3K]3 years ago
3 0

Answer:

x=2

Step-by-step explanation:

x+9 -4x = 3-2x+4

The first step is to combine like terms

-3x+9 = -2x+7

Add 3x to each side

-3x+3x+9 = -2x+3x+7

9 = x+7

Subtract 7 from each side

9-7 = x+7-7

2 =x

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Answer:

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Step-by-step explanation:

7 0
3 years ago
A manufacturing company produces engines for light aircraft . The graph shows the number of engine produced each year since the
photoshop1234 [79]

Answer:

y=13x+32

149 engines in 9th year

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

My answer:

From a look at the photo and the data plot can be represented by the function, so we can pick 2 points in our given graph

  • (x1, y1) = (2,60)
  • (x2, y2) = (5,99)

The standard form of a linear equation is:

y = mx + b where:

  • m is the slope
  • b is the y-intercept

We know the slope of the function can be found as following:

m = \frac{y2 - y1}{x2 - x1}  so in this situation we have:

<=> m=\frac{99-60}{5-2}=\frac{39}{3}=13

=> y = 13x + b (1)

Because the line goes through point  (2,60) so we substitute it into (1):

60 = 13*2 + b

<=> b = 60 - 26 = 34

=> y = 13x + 34

Now we will substitute x=9 to find the engines produced by company in 9th year as:

y=13(9)+32\\y=117+32=149

Hence, the company will produce 149 engines in 9th year

6 0
3 years ago
Graph the line with the given slope and y-intercept.<br> slope = 2. y-intercept =-5
Flura [38]

I'm attaching the graph of the above function

7 0
3 years ago
A drawing of a room has scale of 1/4 inch = 1 ft. what is the proportional relationship according to scale?
exis [7]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Which of the given functions could this graph represent?
hammer [34]

Answer:

The answer is B. f(x) = (x − 1)(x − 2)(x + 1)(x + 2)

3 0
3 years ago
Read 2 more answers
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