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Ray Of Light [21]
3 years ago
15

What is the answer to 2(x-3)-4(x+3)

Mathematics
2 answers:
Lyrx [107]3 years ago
7 0

Step-by-step explanation:

2 (x-3)-4 (x+3)

  • 2x-6-4x-12
  • -2x-18
  • -2(x+9)
melamori03 [73]3 years ago
7 0

-2x -18

Good luck! :)

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Let $f(x)$ be a function defined for all positive real numbers satisfying the conditions $f(x) > 0$ for all $x > 0$ and $f
algol [13]
Suppose we choose x=1 and y=\dfrac12. Then

f(x-y)=\sqrt{f(xy)+1}\implies f\left(\dfrac12\right)=\sqrt{f\left(\dfrac12\right)+1}\implies f\left(\dfrac12\right)=\dfrac{1+\sqrt5}2


Now suppose we choose x,y such that

\begin{cases}x-y=\dfrac12\\\\xy=2009\end{cases}


where we pick the solution for this system such that x>y>0. Then we find

\dfrac{1+\sqrt5}2=\sqrt{f(2009)+1}\implies f(2009)=\dfrac{1+\sqrt5}2

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3 0
3 years ago
Read 2 more answers
Simplify by dividing three over five divided by negative four over nine.
Kruka [31]
If I read that right:

(3/5)/(-4/9) is equal to

(3/5)*(9/-4)

-27/20

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3 0
3 years ago
Read 2 more answers
F(x)=x^2-2x-7 <br> given the polynomial function find f(-5)
UkoKoshka [18]

Answer:

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Step-by-step explanation:

f(x)=x²-2x-7

f(-5) means that we have to replace x by -5.

f(-5)=(-5)²-2(-5)-7=25+10-7=25+3=28

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3 years ago
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