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3 years ago

5

What does a path become a circuit and a cycle

1 answer:

Afina-wow [57]3 years ago

7 0

Answer:

We do not travel to the same vertex twice (or more). A cycle is a closed path. ... Different books have different terminology in some books a simple path means in which none of the edges are repeated and a circuit is a path which begins and ends at same vertex,and circuit and cycle are same thing in these books.

Step-by-step explanation:

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2. given 2x2 system<br> X + y - Z=3<br> 2y + 2z = 6<br> -2y - Z = -2

Lesechka [4]

Answer:

Step-by-step explanation:

X + y - Z=3 ------------------(I)

2y + 2z = 6 ------------------(II)

-2y - Z = -2 ------------------(III)

Multiply equation (III) by 2 and add equation (II) & (III)

(II) 2y + 2z = 6

(III)*2 <u>-4y - 2z = -4</u> {Now add and z will be eliminated}

-2y = 2

y = 2/-2

y = -1

Plugin y =-1 in equation (II)

2*(-1) + 2z = 6

-2 + 2z = 6

2z = 6 + 2

2z = 8

z = 8/2

z = 4

Plugin y = -1 & z = 4 in equation(I)

x - 1 - 4 = 3

x - 5 = 3

x = 3 + 5

x = 8

8 0

3 years ago

a geography test has 6 questions worth 3 marks each and 16 questions worth 2 marks each. write an algebraic expression for each

Verdich [7]

(6 x 3) + (16 x 2)
You can use PEMDAS to break it down if you would like
1 question is worth 3 marks each and 1 question is worth 2 marks each

4 0

3 years ago

The population of a city is 218720.

vodka [1.7K]

Correct Answer is 205,857

3 0

3 years ago

Which of the following equations is in equation formed when completing the square on y^2 - 12 y= -27

bogdanovich [222]

Answer:

$(y-6)^2=9$

Step-by-step explanation:

Given

$y^2 - 12y = -27$

Required

Get equivalent expression using completing the square

<em>Follow these steps:</em>

<em>Take the coefficient of y; That is -12</em>

<em>Divide it by 2; That is (-12/2)</em>

<em>Square it: (-12/2)^2</em>

<em />

Add to both sides of the equation

$y^2 - 12y + (\frac{-12}{2})^2= -27 + (\frac{-12}{2})^2$

$y^2 - 12y + (-6)^2= -27 + (-6)^2$

$y^2 - 12y + 36= -27 + 36$

$y^2 - 12y + 36= 9$

Expand the right-hand side

$y^2 - 6y - 6y + 36= 9$

Factorize:

$y(y-6)-6(y-6) =9$

$(y-6)(y-6)=9$

$(y-6)^2=9$

5 0

2 years ago

Find the product mentally.

nataly862011 [7]

Step-by-step explanation:

A is the answer to the question

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2 years ago

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