how many sides are there?

How Many Sides Are There?

Answers

Answer 1

Answer:

13

Step-by-step explanation:

1980 = ( n - 2 ) * 180

n - 2 = 11

n = 13

Answer 2

A convex polygon has 13 sides when the interior angle sum is [tex]1980^{0}[/tex].

What is convex polygon?

A polygon is called a convex polygon when no line segments between the points, goes inside. The boundaries of the convex polygon do not go inside and all the vertices are pointed outside away from the center. The interior angles of a convex polygon are less than 180°.

Given a convex polygon

For a convex polygon with n sides, the interior angle sum is [tex]180^{0}[/tex] × [tex](n-2)[/tex]

Let [tex]180^{0}[/tex] × [tex](n-2)[/tex] = [tex]1980^{0}[/tex]

⇒ n - 2 = 11

⇒ n = 11 + 2

⇒ n = 13

Thus, a convex polygon has 13 sides when the interior angle sum is [tex]1980^{0}[/tex].

Find out more information about convex polygon here

https://brainly.com/question/15051058

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Related Questions

Solve C=AB+D for B

• C-D =B
—————-
A

•AC-D =B

•C - D=B
——
A

•C+D =B
———
A
(If you don’t understand what the options are look at the photo pls <3)

Answers

Step-by-step explanation:

I think u want this... hope u have great day.............

Answer:

I have made it in above picture

it is option A

If the number of bacteria in a colony doubles every 18 minutes and there is currently a population of 500 bacteria, what will the population be 72 minutes from now?

Answers

Answer: 8000 plz mark brainliest

Step-by-step explanation: 72/18 =4 (therefore it doubles 4 times as shown below)

500*2=1000

1000*2=2000

2000*2=4000

4000*2=8000

6) Burritos are $4 each and Tacos are $2 each. You have no more than $20 to spend. Write an
inequality to model this.

Answers

I would do 4x plus 2y = 20 and then solve

The value of 3 expo3 + 4 expo2

Answers

Answer:

43

Step-by-step explanation:

[tex]3^{3}[/tex]+[tex]4^{2}[/tex]=

Solve:

[tex]3^{3}[/tex]= 3*3*3= 9*3= 27

[tex]4^{2}[/tex]= 4*4= 16

Then add them together:

27+16= 43

Hope this helps!

Its not a quiz/test its homework thats due in a bit :)
Just to clear any misunderstandings that might arise

Answers

Answer:

it would be 53

Step-by-step explanation:

The answer is 53 glad to help

Select the correct answer.
Simplify the expression

Answers

Answer: A

Step-by-step explanation:

Since multiplication is the only operation under the radical, you can apply the root to each term. Im not sure if I worded that correctly, but ill hopefully explain correctly.

First we need to take the cubed root of 648. This number doesn't have a perfect root, but it can be simplified. 648 is the same as 216*3, and 216 has a perfect cubed root of 6. So we can bring the 6 outside of the radical

[tex]3x*6\sqrt[3]{3x^4y^8}=18x\sqrt[3]{3x^4y^8}[/tex]

The next step is simplifying the variables, which is the easiest part. Just split them up into multiples of 3, again poor explanation but Ill show what I mean.

[tex]18x\sqrt[3]{3x^3xy^3y^3y^2}[/tex]

The cubed root and the cubed power will cancel and can be brought outside the radical[tex]18x*xy^2\sqrt[3]{2xy^2} =18x^2y^2\sqrt[3]{3xy^2}[/tex]

A savings account earns 4.5% simple interest per year. If $650 is deposited and no withdrawals are made during one year, how much interest will be earned after one year?

Answers

679.25 is the answer

Answer:

$29.25

Step-by-step explanation:

The formula for amount of interest is the P*R*T. Because the principal is $650 dollars, and the rate is 4.5% for 1 year, the formula so far is 650*0.045*T. The interest is per annum or annual, so the time has to be in terms of years, which in this case is 1 year. This would give you 650*0.045. The answer for that is simply $29.25.

A school marching band has 200 members.There are 50 band members who play brass instruments.What percent of the band members play brass instruments?

Answers

Answer:

25% Or

1/4 Or

0.25

Step-by-step explanation:

Solve:

200 divided by 50 is 4

Check your math:

50*4= 200

Your only counting a single piece of this whole. This can be written in 3 ways, 25%, 1/4, or 0.25.

Hope this helps!

Answer:50%

Step-by-step explanation: total no. of band players=200

no. of brass players=50

% of brass players=50/200 x 100

boys to girls in the ratio 4:5 if there are 95 girls how many boys are there

Answers

Step-by-step explanation:

4/9× 95answer is 42

remainder 2

Here u go Hanifa :D <----------

Answers

Answer:

B. 2200 ft²

Step-by-step explanation:

To find the area, calculate two parts and add up

The triangle section has sides:

40 ft and 50 - 30 = 20 ft

The area:

1/2*20*40 = 400 ft²

The rectangle section has sides:

30 ft and 20 + 40 = 60 ft

The area:

30*60 = 1800 ft²

Total area:

400 + 1800 = 2200 ft²

Correct option is B

I BET NOBODY KNOWS HOW TO DO THIS What is the mass in grams of a single calcium atom? (hint: start with 1 atom Ca and do 2 dimensional analysis steps)

Format for the answer is ___ x 10 exponent

_ x 10 _

Give value to four significant figures.

Answers

Answer:

very specific...sus...yea no one knows

Step-by-step explanation:

In order to determine the mass of one atom of an element, you must determine its molar mass, which is its atomic weight on the periodic table in g/mol, and you need to know the relationship between moles and the number of atoms: 1 mol of atoms = 6.022×1023 atoms . Then divide the molar mass by 6.022×1023 atoms/mol .

Find the value of x.
Help ASAP will give brainliest

Answers

Answer:

a . 45

Step-by-step explanation:

you can see the 20 is that small so you need to put 1/2 more of the 20 degrees angle to get the equation

what is 3(x - 4)= 12x

Answers

3x-12 = 12x

-12 = 9x

-12/9 = x

x= -4/3

Answer:

x = 4/5

Step-by-step explanation:

3(x-4)=12x

3x-12=12x

3x+12x-12=12x-12x

15x-12=0

15x-12+12=0+12

15x=12

15x/15=12/15

x = 4/5

hope it's helpful ❤❤❤❤

THANK YOU.

3+2x = 41

Need help
Show work

Answers

Answer:

x=16

Step-by-step explanation:

when solving for a variable, get the variables to one side of the equation and the numbers to the other side.

3+2x=41

*minus 3 from both sides of the equation to get rid of the number on the side of variables of the equation*

2x=38

to get one variable alone, divide the whole equation by 2

x=16

Ok so I did it on my paper and that is wrong but I’m not sure

To get rid of a negative exponent, move the part with the negative exponent to the other side of the_________(blank)

Answers

Answer:

negative chargedhhdhd

What is pi/4 a reference angle for

Answers

is it multiple choice

Please someone help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!

Answers

Answer:

z = 44

Step-by-step explanation:

180 - (44+52) = 180 - 96 = 84º

180 - 84 = 96º

180 - (96 + 40) = z

     180 - 136 = z

     z = 44

Linear equations: 5 +2(2x-3)+8x = -5x +2. and . 5 -2(2x-3)+8x = -5x +2

Plz show your work.

Answers

Answer:

hello,I'll edit the process and say step by step.

result= 28x-30= -70x²+73x-18 = -5x+2

Sorry, it was a little long process. I could not explain them all. I said the result directly.And I am Turkish, sorry if there is a problem with my pronunciation.But remember, you will do it according to the distribution in the parenthesis.

HELP A KID IN NEED
IM JUST A CHILD TRYING NOT TO FAIL MATH

Simplify the expression. 3z+14+5z-9

IM GIVING ALOT OF POINTS PLEASE HELP ME

please


lol sorry I'm kind of desperate

HELPPPP

Answers

Answer:

8z+5

Step-by-step explanation:

Let's split the expression into two terms- z and... not z :)

3z+5z=8z

Why? it's just 3+5 with z tacked on the end

14-9=5

simple math :)

put it together to get

8z+5

all done!

lmk if you have any more questions

13 In 2010, Cool Game Corporation made a profit of $84.7 million.
The profit made in 2010 was 2.2 times the profit the company
made in 2009.

Answers

in 2009 the company made thirty-eight million five hundred thousand dollars

i need help with this​

Answers

Answer:

a- 2 8/27

Step-by-step explanation:

Answer:

[tex]2\frac{8}{27}[/tex]

Step-by-step explanation:

– 6 x + 4 < 29 answer?

Answers

Answer:

its 847>×+18 enjoy hope it work

The track club runs the 50-yard dash. How many inches do they run?

Answers

Answer:

1800in

Step-by-step explanation:

3ft=1yd

3x50=150ft

12in=1ft

12x150=1800in

Answer:

Step-by-step explanation:

1 yard = 36 inches

50 yards = 36 x 50 = 1800 inches

Jenna won 77 toys playing basketball at her school's game night. Later, she gave four to each of her friends. She only has 9 remaining. How many friends does she have?

Answers

Jenna has 17 friends.

The equation can be written as:
77 - 4x = 9 where 77 is the total number of toys, 4 is how many toys she gave to each friend, x is the number of friends, and 9 is the toys remaining.

To solve for x, the number of friends:
77 -4x=9

Subtract 77 from both sides
77-77 -4x= 9-77
-4x= -68

Then divide both sides by -4 to isolate x.
-4x/-4 = 1x and -68/-4 = 17.
1x= 17, so the number of friends is 17.

Find the missing Length. The triangle in each pair are similar

Answers

Answer:

45

Step-by-step explanation:

This might not work every time but it does this time.

99(25/55)=45

45

My point exactly in algebra.

Answers

lol this is so true ( i just want points)

Solve the equation 3 (p-1) = 2p – 11.

Answers

Answer:

p = - 8

Step-by-step explanation:

3 (p - 1) = 2p - 11

3p - 3 = 2p - 11

3p - 2p = -11 + 3

p = -8

Answer:

p = - 8

Step-by-step explanation:

Given

3(p - 1) = 2p - 11 ← distribute parenthesis on left side

3p - 3 = 2p - 11 ( subtract 2p from both sides )

p - 3 = - 11 ( add 3 to both sides )

p = - 8

please do all of these :)

Answers

A SCATTER PLOT IS JUST A DOT PLOT

Write the algebraic expression of “the sum of a multiple of 3 and the number one greater than multiple of 3”

Answers

Answer:

9 IS THE ANSWER

Step-by-step explanation:

3*3=9

2. Solve x - 19 <81. Then graph the solution.

Answers

Answer:

x<100

Step-by-step explanation:

The given equation is :

x-19<81

Adding 19 to both sides of the equation.

x-19+19<81+19

x<100

It means the solution of the given equation is less than 100. Hence, the attached figure shows the graph for the given equation.

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