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galina1969 [7]
3 years ago
12

Choose all the fractions that are equivalent to 1/7

Mathematics
2 answers:
valentinak56 [21]3 years ago
5 0

2/14, 4/28, 5 /35,  you must divide 2÷2/14/2 = 1/7

and of this form you must divide all the other fractions  

Snezhnost [94]3 years ago
4 0

Answer:

4/28

2/14

5/35

Step-by-step explanation:

HOPE THIS HELPS.

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Sladkaya [172]
The awnser for question 5 is 4/6
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Consider the surface f (x comma y comma z )f(x,y,z)equals=negative 2 x squared plus 2 y squared minus 3 z squared plus 3 equals
trapecia [35]

Answer:

a) (8,8,-6)

b) 4x+4y+3z = -3

Step-by-step explanation:

a)

The surface is given by the equation  

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f(x,y,z)=-2x^2+2y^2-3z^2+3

The gradient of this function is the vector

(\frac{\partial f}{\partial x},\frac{\partial f}{\partial y},\frac{\partial f}{\partial z})=(-4x,4y,-6z)

If we evaluate it in the point P = (-2,2,1) we obtain the point

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b)

The vectors with their tails at P are of the form  

(-2,2,1)-(x,y,z) = (-2-x, 2-y, 1-z)

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(-2-x,2-y,1-z)\cdot(8,8,6)=0\Rightarrow -16-8x+16-8y+6-6z=0\Rightarrow 4x+4y+3z=-3

and the equation of the desired plane is

4x+4y+3z = -3

3 0
3 years ago
Help please !!!!!!!!!!!!!!
ohaa [14]
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