Find the sum of interior angles of a 10-sided figure. Explain what formula you used to get the answer.

Answers

Answer 1

Answer: 1440°

Step-by-step explanation:

To solve the above question, we'll use the formula (n-2) × 180. In this question, we are told that it has 10 sides. This implies that n= 10. Therefore, using the formula goes thus:

= (n - 2) × 180

where, n = 10

= (10 - 2) × 180

= 8 × 180

= 1440


Related Questions

One-third of Olivia age , increased by 12 , is equal to twice her age , decrease by 3. How old is Olivia

Answers

Answer:

she would be 9

Step-by-step explanation:

Answer:9

Step-by-step explanation:

Aisha wants to paint the four walls of her living room.
Each wall is 2.4 m high and 3.7 m long.
One wall has a door of 2 m by 0.7 m.
Tins of paint cost £12 per 1.5 L tin.
Each litre of paint can cover 8 m2 of wall.
There is an offer of: Buy 2 tins get the 3rd at half price.
How much will Aisha pay to paint her living room?

Answers

9514 1404 393

Answer:

  £30

Step-by-step explanation:

The total area of the four walls is ...

  A = 4 × LW

  A = 4 × (2.4 m)(3.7 m) = 35.52 m²

Subtracting the area of the door, we find the painted area to be ...

  35.52 m² -(2 m)(0.7 m) = 34.12 m²

Painting this area will require ...

  (34.12 m²)/(8 m²/L × 1.5 L/tin) = 2.8433... tins

Aisha will need to buy 3 tins of paint, for which she pays 2.5 times the price of 1 tin:

  2.5 × £12 = £30 . . . . Aisha's cost to paint her living room

£25 or £20.10

Step-by-step explanation:

calculate the area to be painted:

2.1x4.5= 9.45m^2 for each wall

x4= 37.8m^2

area of door= 1.8x0.9= 1.62m^2

subtract the area of the door from the wall area

37.8-1.62= 36.18m^2 to be painted

divide the area by the area that 1L of paint can cover

16.18/12= 3.015 L needed

if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L- so another can (3 cans total) add price up.

£30- but buy 2 get 3rd 1/2 price, so take £5 off. price is £25

or

calculate price for 0.015L

1.5=£10

divide both sides by 100

0.015= £ 0.10

if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L

£20+£0.10= £20.10

I DONT KNOW IF THIS IS RIGHT but hope it helps :)

Fill in the blanks!!

(Will be given brainliest for the correct answers)

Answers

Answer:↓↓↓

Step-by-step explanation:

We are given that side AB is congruent to BD. We are also given that side AC is congruent to CD.

We know that side BC and side CB are congruent because of the Reflexive property.

Therefore, ΔABC and ΔDBC are congruent because of SSS Postulate.

Hope this helped!

plz help me with this

Answers

Answer:

its green so you got it right

and if thats not the case you are correct

Step-by-step explanation:

The equation 4s + 3d = 33 is used to determine the number of sandwiches, s, and drinks, d, that can be purchased with $33. If you purchase 3 drinks at $3 each, how many sandwiches will you be able to purchase?

Answers

You will be able to purchase 6 sandwiches at $4 each.

Rajan had 30 dollars to spend on 3 gifts. He spent 9 1 4 dollars on gift A and 5 4 5 dollars on gift B. How much money did he have left for gift C?

Answers

Answer:

$15 1/10

Step-by-step explanation:

Given that :

Total amount to spend = $30

Amount spent on Gift A = $9 1/4

Amount spent on Gift B = $5 4/5

Amount left to spend on gift C ;

$30 - (9 1/4 + 5 4/5)

$30 - (37/4 + 29/5)

$30 - (185 + 116)/20

$30 - 298/20

30/1 - 298/20

$(600 - 298) / 20

$302/20

$15 2/20

= $15 1/10

Solve this question. 50 pts!!

Answers

Answer:

QR = 19

SR = 24

PT = 25

SQ = 14

QRS = 47 °

PQS = 39°

RPS = 42°

PSQ = 67°

Answer:

answer

Step-by-step explanation:

QR = 19

SR = 24

PT = 25

SQ = 14

QRS = 47 °

PQS = 39°

RPS = 42°

PSQ = 67°

Please this is urgent I need help please answer me

Answers

Answer:

u have the answer yet?

Step-by-step explanation:

?

I neeeeeed help please

Answers

Answer:

(3x+21)(x-5)

Step-by-step explanation:

To solve this let's create an equation that has intercepts at -7 and 5

To do this we get the following

(x+7)(x-5)

Now we need to make sure that the line passes through (4,-33) To do so we will plug in 4 to see how far off we are

If you plug in 4 into x you should get -11

To make y= -33 we simply need to put a three in the front and then distribute it to the first bracket

So we have

3(x+7)(x-5)

then distribute the 3 to get

(3x+21)(x-5)

I doubled checked this answer on desmos and my math is correct


The changes in the depth of snow, in inches, at a ski resort for four days are shown below.
-1/8, 3/4, 3/4, -1/2

What is the average change in the depth of the snow during the 4-day period?
A. 2 1/8
B.3 1/2
C. 7/32
D. 17/32

Answers

Step-by-step explanation:

Total change = (-1/8) + (3/4) + (3/4) + (-1/2) = 7/8.

Average change = Total change / 4 days

= (7/8) / 4

= 7/32. (C)

A store is having a 20%-off sale on its video games. What is the amount of the discount on a game that regularly costs $25?

Answers

Answer:$20

Step-by-step explanation:

$25x.20=5

$25-5=20

NEED HELP FAST PLEASEEE!!

Answers

Answer:

y=2x+0

Slope:  

2

y-intercept:  

( 0, 0 )

Step-by-step explanation:

Slope intercept form: y=mx+b

Use the slope formula and the slope-intercept form to find the slope  m  and y-intercept  b .

Order the sides of each triangle from shortest to longest.

Answers

Answer:

A.

Step-by-step explanation:

the line that's PR is longer than OR

wut anime do u guys watch comment down below and you'll get brainliest as well 2x2 just in case it would deleted i will also put math equations 2x3x4x5

Answers

I feel like the answer to this complex equation would have to be naruto . It’s an older one that everyone knows but still such a good show

HELP WITH MATH PLSSSSSSSSSSSSS

Answers

Answer:

Undefined

Step-by-step explanation:

Whenever there's a perfectly straight vertical line, its classifies as undefined

3) The price of a math book is $50, but you only have $35 with you. If you
get a discount of 20%, how much money do you need to borrow from a
friend so that you can buy the book?
Work Area
4) The price of a telephone is $200 at Walmart and $240 at Target. If you
get a 15% discount at Target, where would you go to buy the telephone?

Answers

3) they would need to borrow 5$ from a friend

4) at target even with the 15% off it would still be 204$ so you would go to walmart where it’s still only 200$

Sorry for it being so long

Answers

Answer:

<1 = 97

<2 = 83

<7=87

<8 = 83

<11 = 112

<12 = 68

<13 = 112

<14 = 68

Step-by-step explanation:

Those are the only ones Ik sry

What is greater than 4.026

Answers

Answer/Step-by-step explanation:

The number 5 is greater than 4.026

Hope this helps!

Answer:

4.027

Step-by-step explanation:

Just add a number to the problem

i have to make an expression that has a value of 10 out of the numbers 5,2,1,1 and the format it has to go in is like ( - )+( x )=10 help me please

Answers

Answer:

(1-1)+(5×2)

hope this helps you

what is the equation in slope intercept form of a line that has a slope of -1/2 and a y intercept of 6?​

Answers

Answer:

y=-1/2x + 6

Step-by-step explanation:

I can't see the picture because it is blurry but i got y=-1/2x + 6

Simplify:
3x (x^2 + 5x – 4)

Answers

The answer is 3x^3+15x^2-12x.

DETERMINE THE MISSING SIDE

Answers

Answer:

21 in

Step-by-step explanation:

by the Pythagorean theorem we have

[tex]841=400+x^2\\\\x^2=441\\\\x=21[/tex]

notice that the 841 and the 400 don't go squared because they already squared!

Need help finding x.

Answers

Answer:

Step-by-step explanation:

SOH CAH TOA  to help remember how the trig functions fit on the triangle

use  SOH since we know the angle and the hypotenuse and want to find the opposite side

Sin(x)= Opp/ Hyp

Hyp* sin(38) = Opp

12* 0.6156614753 = Opp

7.3879377...

7.4  is the answer  

Lydia made 3 pounds of trail mix. One portion of trail mix is 19 pound. How many portions of trail mix did Lydia make?

Answers

Answer:

I have the same question but no one will help me

Step-by-step explanation:

Write an algebraic expression or equation to represent each word phrase.
Five times the sum of a number n and eleven

Answers

Answer:

{ N+11 }x5

Step-by-step explanation: First you have to add <n> plus eleven. In order to get a sum, you must multiply by five.

How to solve and the answer

Answers

Answer:

x = 10; y = 10

Step-by-step explanation:

[tex] \sin(theta) = \frac{opposite}{hypotenuse} [/tex]

[tex] \cos( {theta} ) = \frac{adjacent}{hypotenuse} [/tex]

[tex] \tan( {theta} ) = \frac{opposite}{adjacent} [/tex]

theta = 45°

opposite = x

hypotenuse = 10√2

adjacent = y

1) find x using sin formula

[tex] \sin(theta) = \frac{opposite}{hypotenuse} [/tex]

[tex] \sin(45) = \frac{x}{10 \sqrt{2} } [/tex]

[tex] \sin(45) \times 10 \sqrt{2} = x[/tex]

[tex]10 = x[/tex]

[tex]x = 10[/tex]

2) find y using cos formula

[tex] \cos( {theta} ) = \frac{adjacent}{hypotenuse} [/tex]

[tex] \cos(45) = \frac{y}{10 \sqrt{2} } [/tex]

[tex] \cos(45) \times 10 \sqrt{2} = y[/tex]

[tex]10 = y[/tex]

[tex]y = 10[/tex]

A laundry basket has 24 t-shirts in it. Four are navy, twelve are red and the remaining are white. What is the probability of not selecting a red shirt? *

Answers

Answer:

50%

Step-by-step explanation:

Identify the population of shirts that are *NOT red.* In this case 12 are red. This means that 12 shirts are *not red.* 12/24 = .5 or 50% probability.

which equation represents this graph?

Answers

Answer:

It would be the 1st answer, y= 3/2x + 2.

Step-by-step explanation:

The intersection on the Y axis determins the "+2". To find the slope, it is always x/y. It rises 3, and runs 2. Hope this helps

What is the area of the real objet that the scale drawing models

A. 300 square cm
B. 60 square cm
C. 25 square cm
D. 12 square cm

Answers

Answer:

C. 25 square cm

Step-by-step explanation:

HELP FAST i have a lot to do and its all due on the 14 so pls help

3(3+4) blank 3³

What is the solution set for 6x−9=15, given the replacement set {0, 1, 2, 3, 4}?

What is the solution set for 6x−2=5x+3, given the replacement set {2, 3, 4, 5}?

What is the solution to this equation?

6+7(b−1)=5+b

Answers

Answer: 1. X=4

2. X=12

3. X=5

4. B=1

Step-by-step explanation:

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