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Murljashka [212]
3 years ago
12

A triangle has sides with length of 2x-7,5x-3,and2x-2.what is the perimeter of the triangle? (add all sides)

Mathematics
1 answer:
sashaice [31]3 years ago
5 0
<span> 2x-7 + 5x-3 + 2x-2 = 9x - 12</span>
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Fill the value of the expression 24 3/5 +4 ×(8 1/5-2)
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First off, we'll convert the mixed fractions to "improper",

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oee [108]

Answer:

216cm

Step-by-step explanation:

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Write an algebraic expression that models the word phrase.
lutik1710 [3]

Answer:

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Step-by-step explanation:

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13.1: Equivalent Expressions
scoundrel [369]

Distributive Property:  a ( b + c) = (a*b) + (a*c)

b)   x(x + 9) =  x*x + 9*x

               = x² + 9x    

c)  x² - 18x

     x² = x * x

  18x  = 18 *x

G C F = x

Greatest common factor in both the terms is 'x'.Take the common variable from both the terms.

x² - 18x = x*x - 18*x

            = x (x - 18)

           

Standard form.                Factored form

      x²                                     x*x

x²  +  9x                             x(x +9)

    x² - 18x                           x(x - 18)  

-x² + 10x                             x(-x + 10) = x(10 -x)

-x² - 2.75x                          -x(x + 2.75)

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2 years ago
Solve the system of equations -x+ 2y = –11 and 5x – 8y = 39 by<br> combining the equations.
Alchen [17]

Answer:

x=-5, y=-8. (-5, -8).

Step-by-step explanation:

-x+2y=-11

5x-8y=39

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

5(-x+2y)=5(-11)

5x-8y=39

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

-5x+10y=-55

5x-8y=39

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

2y=-16

y=-16/2

y=-8

-x+2(-8)=-11

-x-16=-11

-x=-11+16

-x=5

x=-5

3 0
2 years ago
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