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Ksju [112]
3 years ago
8

What is the solution to this open sentance? 4x-4=2x+2

Mathematics
2 answers:
BARSIC [14]3 years ago
8 0

Answer:

x=3

Step-by-step explanation:

4x-4=2x+2

Subtract 2x from each side

4x-2x -4 = 2x+2-2x

2x -4 =2

Add 4 to each side

2x -4+4 = 2+4

2x =6

Divide each  side by 2

2x/2 = 6/2

x =3

I am Lyosha [343]3 years ago
7 0

Answer:

x=3

Step-by-step explanation:

The given mathematical statement is

4x-4=2x+2

Group like terms to get

4x-2x=4+2

Simplify

2x=6

Divide both sides by 2

x=3

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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  

f(x,y,z) = 0 where

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

(8,8,-6)

b)

The vectors with their tails at P are of the form  

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

as they must be orthogonal to the gradient, they must be orthogonal to the vector (8,8,6) so their inner product is 0

(-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
Perform the indicated operation. 15/7 x 3/8
Alla [95]
  You just multiply the numerators of the fractions and the denominators of the fractions together, and then reduce the fraction to simplify it from that point on.
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3 years ago
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In 2/5 hour, Matt can type 4/5 page. What is Matt's rate in pages per hour?
Fed [463]
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3 years ago
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Which statement BEST describes the graph of f(x - 6)?
Alex

Answer:

B. f(x) is shifted left by 6 units

Step-by-step explanation:

when we talk about translations, we know they happen along the X axis, y axis or sometimes both, in this case we see that were subtracting x by six units, so we are moving left along the x axis

ways to remember this is:

 -you count up x the RIGHT way going right

 -you count UP y

and of cource by process of ellimination we know that decreasing X goes left and decreasing y goes down

ALSO NOTE: x always goes horizontally and y always goes vertically

6 0
2 years ago
Which equations are true for x = –2 and x = 2? Check all that apply.
Katyanochek1 [597]

Hi Brainiac


x² - 4 = 0

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x² - 4 + 4 = 0 + 4

x² = 4

Now take the square root

x= +/-√4

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The answer is A


I hope that's help :)

3 0
3 years ago
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