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3 years ago

50 POINTS AND BRAINLIEST

Mathematics

1 answer:

Elina [12.6K]3 years ago

7 0

1/1+z+4/z+z^2 +1

1/2z =4/2z^2 +1

1/2z=2(z^2+2)/2z^2

1/2z=z^4+2z^2

z^5/2+2z^2

=therefore it has no solution I think this is the stes i m not sure sorry i m not sure ,try asking somebody else to cuz i m not sure

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The general form of the equation of a circle is x2 + y2 + 42x + 38y − 47 = 0. The equation of this circle in standard form is .

Readme [11.4K]

Answer:

(-21,-19)

$\sqrt{849}$

Standard form

Step-by-step explanation:

We are given the equation of circle

$x^2+y^2+42x+38y-47=0$

General equation of circle:

$x^2+y^2+2gx+2fy+c=0$

Centre: (-g,-f)

Radius: $\sqrt{g^2+f^2-c}$

Compare the equation to find f, g and c from the equation

$g\rightarrow 21$

$f\rightarrow 19$

$c\rightarrow -47$

Centre: (-21,-19)

Radius (r) $=\sqrt{21^2+19^2+47}=\sqrt{849}$

Standard form of circle:

$(x+21)^2+(y+19)^2=849$

The centre of circle at the point (-21,-19) and its radius is $\sqrt{849}$ .

The general form of the equation of a circle that has the same radius as the above circle is standard form.

4 0

4 years ago

Read 2 more answers

Amelia has a triangular kite with an area of 30 square inches and a height of 6 inches. How long is the base of the kite?

Gnesinka [82]

Area of triangle = 0.5 * base * height
30 = 0.5 * 6 * base
30 = 3 * base
so , base = 10 inch

4 0

3 years ago

a proportional relationship is represented by the equation 2x=18y . If y=x , where k is the constant of proportionality, then wh

liubo4ka [24]

Answer: $\bold{k=\dfrac{1}{9}}$

<u>Step-by-step explanation:</u>

The constant of proportionality is y = kx. Solve the given equation for "y" to find k-value in front of "x".

18y = 2x

$\dfrac{18y}{18}=\dfrac{2x}{18}$

$y=\dfrac{1}{9}x$

$k=\dfrac{1}{9}$

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3 years ago

2 tacos cost $6. What is the cost for 6 tacos?

Fiesta28 [93]

Answer:

18 dollars

Step-by-step explanation:

We can write a proportion to solve

2 tacos 6 tacos

--------------- = ------------

6 dollars x dollars

Using cross products

2*x = 6*6

2x = 36

Divide by 2

2x/2 36/2

x = 18

18 dollars

6 0

3 years ago

01:59:51

IceJOKER [234]

Answer:

L+2=8

Step by step explaintion.

the length is so much longer than some multiple of the width

or perhaps the area of the rectangle.

8 0

3 years ago