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3 years ago

Solve a = 2x + 6xz for X

Mathematics

2 answers:

NeX [460]3 years ago

8 0

Answer:

See below.

Step-by-step explanation:

So we have the equation:

$a=2x+6xz$

On the right, factor out an x:

$a=x(2+6z)$

Divide both sides by (2+6z). The right will cancel:

$x=\frac{a}{2+6z}$

And we're done!

Sergio [31]3 years ago

4 0

Answer:

x=a/2(1+3z)

Step-by-step explanation:

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3 years ago

Determine the equation of the circle graphed below. ( please help me )

Brums [2.3K]

Answer:

$Equation : \\(x+3)^2 + ( y -2)^2 = 36$

Step-by-step explanation:

For standard form the circle's equation we need the centre of the circle and the radius.

Step 1: Find the centre

If the centre is not given find the end points of the diameter

and then find the mid point.

Let the end points of the diameter be : ( - 3 , 8 ) and ( -3 , -4 )

The mid-point of the diameter is :

$Mid-point = (\frac{-3 + - 3}{2}, \frac{-4+8}{2}) = (-3, 2)$

Therefore, centre of the circle = ( -3 , 2 )

Step 2 : Find radius

$Radius = \frac{Diameter }{2}$

Diameter is the distance between the end points ( -3 , 8) and ( -3 , -4 )

That is ,

$Diameter = \sqrt{(-3-(-3))^2 + ( -4 -8)^2}\\$

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Therefore ,

$Radius = \frac{12}{2} = 6$

Step 3 : Equation of the circle

Standard equation of the circle with centre ( h ,k )

and radius ,r is :

$(x - h)^2+(y -k)^2 = r^2$

Therefore, the equation of the circle with centre ( -3, 2)

and radius = 6 is :

$(x - (-3))^2 + (y - 2)^2 = 6^2\\\\(x + 3)^2 + (y - 2)^2 = 36$

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2 years ago

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4 years ago

The following graph shows a seventh-degree polynomial:

LenaWriter [7]

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3 years ago

Read 2 more answers