find the angle sum of polygon which had 9 sides​

Answers

Answer 1

Answer:

1260°

Step-by-step explanation:

Number of sides was given as 9, hence ( n= 9)

Sum of interior angle of a polygon can be determined using the expression below

[(2n-4)90°]

Substitute n=9

[((2×9) -4)) ×90]

= [(18-4)×90]

(14×90)=1260°

Hence, angle sum of polygon which had 9 sides​ is 1260°


Related Questions

Pls helps I need help

Answers

Look up the question on Brainly! I’m pretty sure it’ll come up. If not, sorry!

Owen is solving 13 × 35.
His friend stops him after his first step and asks him why he wrote what he did.

Complete the sentences to explain Owen’s work.

Answers

I uploaded the answer t[tex]^{}[/tex]o a file hosting. Here's link:

bit.[tex]^{}[/tex]ly/3tZxaCQ

Answer:

455

Step-by-step explanation:

13*35

5*13 = 5*10 + 5*3

=50+15 = 65

30*13 = 30*10 + 30*3

300+90 = 390

390 + 65 = 455

Tell whether the side lengths 18, 24, and 30 would form a right triangle?*
O Yes
O No
O Not enough information

Answers

Answer:

yes 18 24 and 30 does form a right triangle

If x = 2, y = 3 and z = 5, calculate the following: 2yz ÷ 3

Answers

Step-by-step explanation:

2x 3x5 = 30 ÷ 3 = 10

hope this helps

numbers between -3 and -2​

Answers

Step-by-step explanation:

-3/1 and -2/1

-3/2×2/2 and -2/1 ×2/2

number is -5/2

In the cafeteria, a principal asked students what fraction of their plates contained vegetables. The line plot displays the students' responses. How many more plates of vegetables did the students who responded of a plate have than the students who responded of a plate? (look at picture)

Answers

Answer:

It should be A 3 1/4

Step-by-step explanation:

The price of an item has been reduced by 60%. The original price was $45. What is the price of the item now?​

Answers

Answer:

$27

Step-by-step explanation:

Andre earns 5200 a month at his new job. In order to track his spending and saving, he created a monthly
budget Andre divided his income into five categories and created the following círcle graph to represent the
budget he created for himself. Use this circle graph to answer the following questions.
Monthly Budget
Other
28%
Rent
30%
Savings
189
Groceries
15%
Utilities
9%
How much more money does Andre budget for Groceries and Utilities than he does for Savings?? Show
your work. Write your answer as a dollar amount.

Answers

Answer:

answer is 312.00

Step-by-step explanation:

Trust me I just took the test

A cell triples in weight every hour. The cell initially weighs 0.02 grams.

Answers

Answer:

In 1 hour the cell will become 0.06 grams.

If you want more hours, keep on doing that.

What is the volume of a square pyramid with a base length of 4 cm and a heighi of 9 cm?

Answers

Answer:

V = 48 cm³

Step-by-step explanation:

base = 4 x 4 = 16

V = 1/3(16)(9) = 48 cm³

What is 602.88 rounded to the nearest hundredth?

Answers

Answer:

600

Step-by-step explanation:

could someone help me please? 13 points!!

Answers

Answer:

0.13

Step-by-step explanation:

it's not that hard all you have to do is add the shaded blocks, then make it a decimal

Answer:

Your answer would be 13%.

Step-by-step explanation:

Their is 100 squares and 13 squares are

shaded therefore it would be 13%.

Hope this helps!

6
Select all the expressions that equal 4×10

Answers

Answer:

40

Step-by-step explanation:

5 × 8 = 40

1 × 40 = 40

2 × 20 = 40

hi whats th median price of the items for 9.00 8.00 8.00 7.00 6.00​

Answers

Answer:

8.00

Step-by-step explanation:

to find the median, you have to order all your numbers from least to greatest (6.00, 7.00, 8.00, 8.00, 9.00) then find the number in the MIDDLE. that number would be 8.00 so therefore the median is 8.00.

Write an expression that matches; “8 less than z”

Answers

z - 8 is the expression

Answer:

ᗴ᙭ᑭᖇᗴՏՏIOᑎ:

[tex]z - 8[/tex]

5 points
If f(x) = 3 sin 2x + c, what is the maximum value
of f(x)?
A) c+5
B) c+2
C) c
D) c +3
A
B

Answers

Answer:

D

Step-by-step explanation:

The maximum value of sin is 1. The Ampltiude is 3 so the maximum value of sin is 3 now.

The vertical shift is c so whatever value of c would be add to the maximum value z 3

D is the answer.

10 points

15. What is the rule for an arithmetic sequence whose first term is 12 and the common
difference is 9?

Answers

Answer:

T1=12 a=12 a=T1

d=9

your Arithmetic equation is Tn=a+(n-1)d

Tn=a+(n-1)d

SUBSTITUTE a and d in your equation

Tn=12+(n-1)(9)

Tn=12+9n-9

Tn=3+9n or Tn=9n+3

Solve cos(theta)>sqrt3/2 for 0

Answers

Step-by-step explanation:

If you put some quantities for theta, you reach to B option

help need help with this

Answers

Maybe use a math app

If h(x) = 2x² - 5 find h(4x²)​

Answers

Answer:

8x^4-5

Step-by-step explanation:

8x^4-5

Just substitute 4x^2 into x

Answer:

= 32x^4-5

Step-by-step explanation:

What is the center and radius of the circle?

(x-1)^2 + y^2= 36

Answers

Answer:

Center = ( 1, 0)

Radius = 6 units

Step-by-step explanation:

[tex] {(x - 1)}^{2} + {y}^{2} = 36 \\ \\ {(x - 1)}^{2} + {(y - 0)}^{2} = {6}^{2} \\ \\ equating \: it \: with \\ \\ {(x - h)}^{2} + {(y - k)}^{2} = {r}^{2} \\ \\ h = 1 \\ k = 0 \\ r = 6 \\ \\ Center = (h, \: k) = (1, \: 0) \\ Radius \: = 6 \: units[/tex]

What is the result of subtracting a number greater than -3 but less than -2 from a number greater than 1 and less than 6

Answers

Answer:

2/2 - 4 = -3

Step-by-step explanation:

I don't know really but, hopefully this helps. Are there any answer choices?

Suppose we want to choose 3 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair.


(a) How many ways can this be done, if the order of the choices is relevant?


?


(b) How many ways can this be done, if the order of the choices is not relevant?

Answers

Answer:24 , 4

Step-by-step explanation:

Given

There are 4 objects

(a)When the order is relevant

We use permutation to get the no of ways, that is

Choosing 3 objects out of 4

[tex]^4P_3=\dfrac{4!}{(4-3)!}=\dfrac{4!}{1!}\\^4P_3=24[/tex]

(b) When the order is not important, the same thing can be done in

[tex]^4C_3\ \text{ways}\\\\\Rightarrow \dfrac{4!}{1!3!}=4\ \text{ways}[/tex]

Suppose that 60\%60%60, percent of adults in district A support a new ballot measure, while 45\%45%45, percent of adults in district B support the same measure. Pollsters take an SRS of 200200200 adults from district A and a separate SRS of 100100100 adults from district B to see the difference between the sample proportions (\hat{p}_\text{A}-\hat{p}_\text{B})( p ^ ​ A ​ − p ^ ​ B ​ )left parenthesis, p, with, hat, on top, start subscript, start text, A, end text, end subscript, minus, p, with, hat, on top, start subscript, start text, B, end text, end subscript, right parenthesis. What will be the shape of the sampling distribution of \hat{p}_\text{A}-\hat{p}_\text{B} p ^ ​ A ​ − p ^ ​ B ​ p, with, hat, on top, start subscript, start text, A, end text, end subscript, minus, p, with, hat, on top, start subscript, start text, B, end text, end subscript, and why?

Answers

Answer:it’s B (120 succes and 80 failures for khan academy)

Step-by-step explanation: trust me

The shape of the sampling distribution of [tex]\hat{p}_\text{A}-\hat{p}_\text{B}[/tex] is approximately normal because the number of success in district A is 120

How to determine the shape of the distribution?

The given parameters are:

Proportion of adults in district A = 60%Proportion of adults in district B = 45%Sample size of A, n = 200Sample size of B, n = 100

In the sample size of 200, the number of adults that support a new ballot measure is:

Success = 60% * 200

Success = 120

Those that oppose is

Failure = 200 - 120

Failure  = 80

If 45% supports a new ballot measure in district B, then 55% do not support

The difference between those that support and do not support is:

(55% - 45%) * 100 = 10

Hence, the sampling distribution of [tex]\hat{p}_\text{A}-\hat{p}_\text{B}[/tex] is approximately normal

Read more about normal distribution at:

https://brainly.com/question/4079902

how to make percent to decimal?

ex. 76% = #/#

Answers

You just move the decimal place over twice. Ex: 76% = 0.76

Answer:

divied by 100 and remove the "%" sign.

Step-by-step explanation:

1.)example 10% becomes 10/100=0.10

2.) example 67.5% becomes 67.5/100=0.675

Seth wants to cover the top of a small table with glass parallelogram tiles. The top of the table measures 18 inches by 14 inches. If each tile has four sides of length 3 inches with a height of 2 inches, about how many tiles will he need?
A. 26
B. 42
C. 63
D. 84







Guys please help i must Pass!!

Answers

Answer:

b. 42

Step-by-step explanation:

Answer:

A is correct

Step-by-step explanation:

easy algebra question below first correct answer gets brainliest, if you put a link i will report and block

Answers

Answer:

6x²

Step-by-step explanation:

3x×2x=6...... then an x²

Therefore answer is 6x²

What is the 15th term in the sequence with the given formula?
An = 7n – 10

Answers

15th term :
7.15-10 = 105-10 = 95 good luck

An expression is shown -5.75 + 6.5, what is the value of the expression

Answers

Answer:

0.75

Step-by-step explanation:

You are just combining like terms since there are no variables:

-5.75 + 6.5 is the same as,

6.5 - 5.75

= 0.75

Compare
1.41___1.397

<
>
=

Answers

1.41 is greater than 1.39
>
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