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4 years ago

12

In a disconnected graph, when you cannnot reach a particular vertex, you can fix the problem by simply drawing an edge to that v

ertex
True or False

1 answer:

makvit [3.9K]4 years ago

3 0

It is true because you can draw an edge to that vertex

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a restaurant bill comes to $28.35.Find the total cost if the total cost if the tax is 6.25% and a 20% tip is left on the amount

horsena [70]

There are numbers for answers answer it yourself

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3 years ago

From the set {0, 1, 15}, use substitution to determine which value of makes the equation true.

DanielleElmas [232]

Answer:

b = 0.

Step-by-step explanation:

The only value for b that makes the equation true is 0. So, the equation has a unique solution of b = 0.

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2 years ago

If a + b + c.= 5 and ab + bc +ca = 10 , then prove that a3+ b3+ c3-3abc = -25

Alex Ar [27]

Start with

$(a+b+c)^3=a^3+b^3+c^3+3(a^2b+a^2c+ab^2+ac^2+b^2c+bc^2)+6abc$

Given that $a+b+c=5$ , we know $(a+b+c)^3=125$ .

Also, $ab+bc+ca=10$ , so

$a^2b+a^2c+ab^2+ac^2+b^2c+bc^2=a(ab+ac)+b(ab+bc)+c(ac+bc)$

$=a(10-bc)+b(10-ca)+c(10-ab)$

$=10(a+b+c)-3abc$

$=50-3abc$

So we have

$125=a^3+b^3+c^3+3(50-3abc)+6abc$

$125=a^3+b^3+c^3+150-9abc+6abc$

$\implies -25=a^3+b^3+c^3-3abc$

QED

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3 years ago

If a sample of 58 runners were taken from a population of 302 runners, could refer to the mean of how many runners' times?

IceJOKER [234]

The answer will be neither 58 nor 302 58 Both 58 and 302 or just 302

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3 years ago

Read 2 more answers

2x-6y=12<br> x+2y=14. Solve the system of equation

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the answer to this system of linear equations is (54/5,8/5)

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4 years ago