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Luden [163]
2 years ago
14

I need help please i am giving 100 points and brainliest

Mathematics
2 answers:
liubo4ka [24]2 years ago
8 0

Answer:

-3

Step-by-step explanation:

-7x + 4x = 9

-3x = 9

x = 9/(-3)

<h3>x = -3</h3>

<h2>MARK ME AS BRAINLIST </h2>
Fed [463]2 years ago
7 0
Firstly, you want to add: -7x+4x= -3x
2nd: divide -3 on BOTH sides which would look like:
-3x=9
- -
-3 -3
which would then equal
x= -3
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Answer:

Step-by-step explanation:

The directional derivative of a function in a particular direction u is given as the dot product of the unit vector in the direction of u and the gradient of the function

g(x,y) = sin(π(x−5y)

∇g = [(∂/∂x)î + (∂/∂y)j + (∂/∂z)ķ] [sin(π(x−5y))

(∂/∂x) g = (∂/∂x) sin (πx−5πy) = π [cos(π(x−5y))]

(∂/∂y) g = (∂/∂y) sin (πx−5πy) = - 5π [cos (π(x−5y))]

∇g = π [cos(π(x−5y))] î - 5π [cos (π(x−5y))] j

∇g = π [cos (π(x−5y))] [î - 5j]

So, the question requires a direction vector and a point to fully evaluate this directional derivative now.

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3 years ago
Prove that the value of the expression does not depend on a:<br><br> a−(6a−(5a−8))
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Step-by-step explanation:

a−(6a−(5a−8))

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Help pls is geometry
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Answer:

C) 16, 6

Step-by-step explanation:

  1. Set AB and DC equal to eachother. 4x = x + 12.
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  3. Divide by 3 to get x alone. x = 4
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4. Consider line A which is defined by the equation:
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Answer:

c. Put them alined straight and centered X to B to W and now you get the answer so it's C.

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Answer:

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Step-by-step explanation:

3 0
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