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tekilochka [14]
4 years ago
6

Plz Help!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Natasha2012 [34]4 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

5[3(x + 4) - 2(1 - x)] - x - 25 = 14x + 65

Distribute by 3 and 2 inside the square bracket

5 [ 3x + 12 - 2 + 2x ] - x - 25 = 14x + 65

collect like terms inside the square bracket

5 (5x + 10) - x - 25 = 14x + 65 ← distribute the parenthesis by 5

25x + 50 - x - 25 = 14x + 65 ← collect like terms on left side

24x + 25 = 14x + 65 ( subtract 14x from both sides )

10x + 25 = 65 ( subtract 25 from both sides )

10x = 40 ( divide both sides by 10 )

x = 4




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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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Use implicit differentiation to find the points where the circle defined by x^2+y^2−6x−4y=-4 has horizontal and vertical tangent
Inga [223]
Implicit differentiation: 2x+2ydy/dx-6-4dy/dx=0. When dy/dx=0, we have a horizontal tangent.
So 2x-6=0 and x=3. To find y we solve 9+y²-18-4y=-4, y²-4y-5=0=(y-5)(y+1), so the points are (3,5) and (3,-1).
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8 0
4 years ago
The tables show the number of points scored by two basketball teams this season.
masya89 [10]
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7 0
3 years ago
Substitute x with 2.
Marina CMI [18]

Answer: -5


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3 years ago
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anzhelika [568]

Answer:

X=12

Step-by-step explanation:

I did this in my head but if you need the explaination tell me in the comments.

5 0
3 years ago
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