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evablogger [386]
2 years ago
9

How many diagonals will a decatriagon have?

Mathematics
2 answers:
vivado [14]2 years ago
8 0

Answer: 35 diagonals

Step-by-step explanation:

A decagon has (10 2) – 10 = 35 diagonals.

Alinara [238K]2 years ago
6 0

Answer:

35 diagonals.

I Hope it will help you ((:

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If Rachel were to paint her living room alone, it would take 2 hours. Her sister Fran could do the job in 5 hours. How many hour
snow_tiger [21]

Rachel and her sister Fran together can paint the living room in \frac{10}{7} hours

Given that

Rachel can paint half of the living room in 1 hour

Fran can paint \frac{1}{5}th part of the living room in 1 hour

Let's assume together they paint the living room in x hours

⇒ together they can paint \frac{1}{x}th part of the living room in 1 hour

By proportions,

⇒\frac{1}{2}+\frac{1}{5}= \frac{1}{x} {using operation proportions and addition}

⇒\frac{7}{10}=\frac{1}{x}

⇒x=\frac{10}{7}        

⇒ together they can paint \frac{7}{10}th part of the living room in 1 hour

It means, Rachel and her sister Fran together can paint the living room in \frac{10}{7} hours

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brainly.com/question/15277377

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6 0
1 year ago
Find the zeros of the following quadratic polynomials and verify the relationship between the zeroes and the coefficients
Anna [14]

Answer:

Zeros would be x= 0, -2

Step-by-step explanation:

hope this helps :)

6 0
2 years ago
Will give brainiest algebra 2
mars1129 [50]

The sum of squares of numbers is: 13

Step-by-step explanation:

Let x and y be two numbers

Then,

Difference of the squares of the numbers will be:

x^2-y^2

Product will be:

xy

Given identity is:

(x^2+y^2)^2=(x^2-y^2)^2+(2xy)^2

Given values are:

Difference of the squares of the numbers=x^2-y^2=5

Product of numbers = xy = 6

Putting the values in the identity

(x^2+y^2)^2=(5)^2+[2(6)]^2\\=25+(12)^2\\=25+144\\=169

As we have to only find x^2+y^2

Taking square root on both sides

\sqrt{(x^2+y^2)^2}=\sqrt{169}\\x^2+y^2=13

The sum of squares of numbers is: 13

Keywords: Identities

Learn more about identities at:

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7 0
3 years ago
Question 4 Multiple Choice Worth 4 points)
natima [27]

Answer:

No solutions

Step-by-step explanation:

The slope is the same (3) The y-intercepts are different. Therefore, these are different parallel lines.

7 0
3 years ago
Picture with question
pochemuha

Answer:5

Step-by-step explanation:

just tryna get points but it goes down by 3 eachtime

3 0
3 years ago
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