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Harman [31]
4 years ago
8

PLEASE SEE PHOTO!!!!!!!!!!

Mathematics
1 answer:
Alla [95]4 years ago
5 0

Answer:

i think it is 31 maybe

Step-by-step explanation:

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Kitty [74]

Answer: x=-7 and x=9

Asummung you are solving for x

x+7=0

x=-7

-x+9=0

-x=-9

x=9

3 0
4 years ago
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Can someone please explain this to me?
Tom [10]
They are asking what direction is it from point A to point B. hope that helps
8 0
3 years ago
Whats the root and vertex for y= 2x squared -5x-604
jeyben [28]

Vertex is calculated by -b/2a

So we have -(-5)/2(2)=5/4

The root is determined through the quadratic formula:

x=(-b+sqrt(b^2-4ac))/2a

x=(-(-5)+sqrt(-5^2-4(2)(-604)))/2(2)

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Hope this helped!

6 0
3 years ago
Differentiate y=xe^(-x/2).
Liono4ka [1.6K]
We will use the product rule:
d/dx( f(x) · g(x) ) = f´( x ) g( x ) + g´( x ) f( x )    ( and after that the chain rule )
y´ = ( x ) ´· e^(-x/2) + ( e^(-x/2)´ · x) =
=e^{- \frac{x}{2} } + x * e^{- \frac{x}{2} } *(- \frac{1}{2})=  \\ e^{- \frac{x}{2} } - \frac{x}{2} * e^{- \frac{x}{2} } = e ^{- \frac{x}{2} } (1- \frac{x}{2} )
4 0
3 years ago
3y(7 + 2x) + 9ty - 10​
kakasveta [241]

What exactly do you need to find? Does it need simplified?

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3 years ago
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