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Shtirlitz [24]
3 years ago
11

3) -x -1 = 7 + x - x

Mathematics
2 answers:
Nesterboy [21]3 years ago
8 0

Answer:

-8

Step-by-step explanation:

-x-1=7+x-x

-x-1=7

*-1 *-1

x+1=-7

  -1  -1

x=-8

hodyreva [135]3 years ago
7 0

Answer:

x= -8

Step-by-step explanation:

Hope this helps my guy

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Harlamova29_29 [7]

Answer:

f(-4) = 72, f(x + 5) = 3x² + 23x + 36

Step-by-step explanation:

f(-4) = 3(-4)² - 7(-4) - 4

      = 48 - (-28) - 4

f(-4) = 72

f(x + 5) = 3(x + 5)² - 7(x + 5) - 4

           = 3(x + 5)(x + 5) - 7(x + 5) - 4

           = 3(x² + 10x + 25) - 7(x + 5) - 4

           = 3x² + 30x + 75 - 7x - 35 - 4

f(x + 5) = 3x² + 23x + 36

4 0
3 years ago
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Setler [38]

Answer:

~ <em>50 centimeters of the poster ~</em>

Step-by-step explanation:

Let us plan out our steps, and solve for each:

<em>1. Given the information, let us create a proportionality as such:</em>

<em />

     5         =           1      ⇒   x - centimeters of the poster

     x                     10

<em>2. Now let us cross multiply, and solve through simple algebra for x:</em>

5 * 10 = x,

x =<em> 50 centimeters of the poster </em>

<em></em>

5 0
4 years ago
The question is in the picture above. Please help
kow [346]

Answer:

it is 1

Step-by-step explanation:

5 0
3 years ago
2. On Monday, I bought 3 dogs and 5 cats for a total cost of $8.25. On Tuesday, I bought 3 dogs and 6 cats for a total cost of $
Ratling [72]
I don’t know if you need to round, but you can do so on the answer for mondays if necessary

On Monday, the animals cost $1.03125.
On Tuesday, the animals cost exactly $1.
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3 years ago
Rachel mows 5 lawns in 8 hours. At this rate, how many lawns can she mow in<br> 40 hours?
expeople1 [14]

Answer: 25

Step-by-step explanation: 8*5=40, so multiply 5 by 5. Or, to put it another way:

5/8 = 25/40

8 0
4 years ago
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