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77julia77 [94]
2 years ago
15

I just need the answers

Mathematics
2 answers:
ozzi2 years ago
8 0

Answer:

a) 102

b) 0

Step-by-step explanation:

A:

  • 10(10)-(2(5)-12)
  • 100-(10-12)
  • 100-(-2)  
  • 100+2
  • 102

B:

  • 2\left(10\right)-35+4\left(10\right)-\left(3\left(10\right)-5\right)
  • 20-35+40-(30-5)
  • 25-(25)
  • 0

yanalaym [24]2 years ago
6 0

Answer:

A=102 and B=0

Step-by-step explanation:

Sub values for X and Y into equation, put into your calculator and you will get the correct answer.

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Marat540 [252]

Answer: y = 1.8

Step-by-step explanation:

xy = 12.6   If x is 7  but 7  in the equation for x

7y = 12.6   Divide both sides by 7

y = 1.8  

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Step-by-step explanation:

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Multiply (x-1)(x³+4x²+4x-1) and combine like terms. Explain how you reached your answer.
Hitman42 [59]

Answer:

x⁴+3x³ -5x +1

Step-by-step explanation:

To multiply this we are going to <u>multiply each term of the binomial by each term of the polynomial.</u>

(x-1)(x^{3}+4x^{2}  +4x-1)\\=x^4+4x^3+4x^2-x -x^3-4x^2-4x+1

Now we are going to <u>combine like terms (this means we are going to sum up terms with the same exponent)</u>

x^4+4x^3+4x^2-x -x^3-4x^2-4x+1 = x^4 +(4x^3-x^3)+(4x^2-4x^2)+(-x-4x)+1\\=x^4+3x^3-5x+1

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3 years ago
Determine whether the triangles are similar by AA, SSS, SAS, or not similar
Anton [14]

Answer:

Step-by-step explanation:

If Δ JKL ~ Δ JHG , then

\frac{LJ}{GJ} = \frac{KJ}{HJ}

\frac{95}{68} ≠ \frac{87}{72} ⇒ triangles are not similar

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Answer:

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Step-by-step explanation:

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