can someone help me find the area of this decagon?

Can Someone Help Me Find The Area Of This Decagon?

Answers

Answer 1

Step-by-step explanation:

the given height is also the radius of the inscribed circle and the formula for the area is S=2r^2*sqrt(5*(5-2sqrt5))=490*tan18 which roughly rounds to 156.8


Related Questions

Heyy pleaseeeee help meeeeeeeeee

Answers

Answer:

no solution

Step-by-step explanation:

Pls help ple help pls help

Answers

p-24=15

because if argentina has 15 more than south africa then you need to subtract 24-15=p which is pretty much the same things as p-24=15

and if you need to know how many provinces south africa has then 9 provinces should be your answer
It would be D or it would be 9

Please help me if you know this

Answers

Answer:

The answer is the last one: The slop of the line is 1/4, so the company charges $0.25 per mile.

Step-by-step explanation:

The slope is 1/4 because you rise 1 and run 4 putting the point at (4,1)

$0.25 because to go 4 miles it is one dollar so 1 mile is $0.25

Answer:

3rd one

Step-by-step explanation:

what value of x makes this statement true?
3x=2x+12

A) 2
B) 5
C) 6
D) 12

Answers

Answer:

The value of x = 12, makes the statement [tex]3x=2x+12[/tex]  true

Option D is correct option.

Step-by-step explanation:

What value of x makes this statement true?

[tex]3x=2x+12[/tex]

We need to solve the equation to find value of x

[tex]3x=2x+12[/tex]

Subtract 2x on both sides

[tex]3x-2x=2x+12-2x\\x=12[/tex]

So, the value of x is: x=12

So, The value of x = 12, makes the statement [tex]3x=2x+12[/tex]  true

Option D is correct option.

Cool-Down
A meal costs $20 before tax and tip.
There is a 8% sales tax. After the tax, a 15% tip is
added.
What is the total after tax and tip?

Answers

Answer:

24.84$

Step-by-step explanation:

You multiply 20 by 0.08 which equals 1.6

then you add 20 + 1.6 which equals 21.6

then you multiply 21.6 by 0.15 which equals 3.24

24.84

Solve the system.
2x – 6y= -4
6x – 8y = 18

Answers

Y=3 I thinkkkkkkkkkkkkkkkkk

Answer:

Step-by-step explanation:

2,9

Use exponents to write each expression.
6 x 6 x 6 =

Answers

Answer:

6×6×6 = 6³

Step-by-step explanation:

Answer:

6 x 6 x 6 = 216 I believe that's right

2. Shawn has to pay 5% sales tax on his $500 purchase. How much tax will
Shawn pay?

Answers

Answer:

$25

Step-by-step explanation:

.05x500=25

hope this helps

Answer:

He will pay $25 worth of tax

Step-by-step explanation:

percent/100=is/of

5/100=x/500

solve the proportion

5×500/100

2,500/100

25

Need help please and thank you

Answers

Answer:

c

Step-by-step explanation:

~ P l e a s e ~ h e l p ~ m e ~ o u t ~

Answers

Answer:

I think it's A.)

Step-by-step explanation:

Suppose a city with a population of 400,000 has been growing at a rate of 3% per year what will the population be in the next 19 years

Answers

Can I please get help also

A family prepares an emergency kit for their home. The kit contains 63 gallons of drinking water. The​ family's daily drinking water needs are 3 1/2 gallons for the adults and 1 3/4 gallons for the children. For how many days would this emergency water supply last the​ family

Answers

Answer:

12 days

Step-by-step explanation:

Total gallons of the family's drinking water needs = gallons consumed by children + gallons consumed by adults

3[tex]\frac{1}{2}[/tex] + 1[tex]\frac{3}{4}[/tex] =

Converting to decimals

3.5 + 1.75 = 5.25 = 5[tex]\frac{1}{4}[/tex]

If there are 63 gallons, the water supply would last for :

63 / 5.25 =12 days

Answer: 12 days

Step-by-step explanation: They have 63 gallons, they are using approximately 5.25 per day, so if you divide you will get 12 days

You earn 4x+12 points after completing x levels of a Vedio game and then lose 2x-5 points. Write an expression that represents the total number of points you have now

Answers

Answer: 2x+17

4x+12-(2x-5)
4x+12-2x+5
2x+17

find the product of the monomial and polynomial xyz*(2x+3y^2-3z^2)

Answers

Answer:

2x^2yz + 3xy^3z - 3xyz^3

Step-by-step explanation:

First you must distribute:

xyz(2x) + xyz(3y^2) + xyz(-3z^2)

Then simplify:

2xyxx + 3xyzy^2 - 3xyz * z^2

And finally simplify each term:

2x^2yz + 3xy^3z - 3xyz^3

17)
Let X = {x | x is a whole number less than 10}, Y = {yly is an even number}
What is XnY?
A)
{0, 2, 4, 6, 8}
B)
{1, 2, 3, 4, 5, 6, 7, 8, 9}
C){1,3,5,7,9)
D)
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

Answers

Answer:

answer of XnY where Y is an even no and X is a whole number less than 10 is

A {0,2,4,6,8}

Answer:

Step-by-step explanation:

Pls help!!
Pythagorean Theorem
Find the missing side of the triangle! Write down the missing side and what type of triangle it is!

Answers

Answer:

1.) isosceles triangle x=11.3

2.) scalene triangle   x=14.1

3.) isosceles triangle  x=6.02

4.) isosceles triangle   x=15

5.) scalene triangle   x=12

Step-by-step explanation:

The slope of the line that passes through the points (6, 9) and (11, 2) is

Answers

Answer: (5,7)

Step-by-step explanation:

Adding fractions......

Answers

Answer:

28 8/21

Step-by-step explanation:

18 5/7 + 9 2/3 (hint: remember you have to turn them into common denominators)

so ther least common denominator would be 21 so...

18 15/21 + 9 14/21

then add it together

28 8/21

Answer:

I got 28 8/21. There's a picture of how I did it.

Step-by-step explanation:

I used a method called the butterfly method. I did 18 + 9 which equals 27. Then I did 5/7 + 2/3 and got 29/21, and divided the fraction and got 28 8/21.

The speed of light is about 300,000,000 meters per
second. That's about 3 * 108 meters per second. The
speed of sound in dry air is about 3 * 102 meters per
second.
Which travels faster?
Speed of Sound in Dry Air
Speed of Light
3 x 102 m/s
3 x 108 m/s

Answers

Not completely sure but the speed of light

Answer: it’s speed of light

Please help ASAP I’ll mark u as brainlister

Answers

Answer:

its B.)

Step-by-step explanation:

PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!

Answers

Answer:

(2,2)

Step-by-step explanation:

Sub equation 2 in 1 to get 2x-2=-4x+10

6x=12

x=2

sub x in 2

y=4-2

y=2

help me i need a 67 atleast because i need to get good grade!!11111!!!!!11

Answers

Answer:

$0.02

Step-by-step explanation:

20/1,000 = 0.02

I NEED HELP PLEASE !!!!

Answers

Answer:

NEVER INTERSECT

Hope this Helps

what is the equation of the line given the table

Answers

Answer:

y=3x-1

Step-by-step explanation:

Apples are on sale for $3.12 per kilogram is the total cost of apples proportional to the total mass?​

Answers

Answer:

yes

Step-by-step explanation:

(there really isn't much else to say, it's quite simple)

Can someone help me with this I don’t get it.

Answers

Answer:

Step-by-step explanation:

I would help you as much as i can but if you dont know the picture is not there it is gray with a blue circle with a line through it so im sorry that  i cant help

Answer: I think it means like the scale of a town like you can't fit a whole entire full scale repilica of a town in a map can you? so I think what it wants you to do is find how far away the towns are if you were driving from one town to another. does that make sense?

Step-by-step explanation:

How many ratios are equivalent to 3 : 8 ?

Answers

Answer:

6 : 16, 12 : 32 and 18 : 48.

Step-by-step explanation:

Therefore, the three equivalent ratios of 3 : 8 are 6 : 16, 12 : 32 and 18 : 48.

How do you calculate pi? answer quick and u will get brainiest

Answers

Answer:

Make sure you are using a perfect circle.

Measure the circumference of a circle as accurately as you can.

Measure the diameter of the circle.

Use the formula.

For more accurate results, repeat this process with several different circles, and then average the results.

Step-by-step explanation:

Answer:

3.14

Step-by-step explanation:

You calculate anything times 3.14

In the standard (x, y) coordinate plane, a point
(4, - 3) is shifted left 10 units and up 12 units. What
are the new coordinates of the point?

Answers

(-6,9)

Step-by-step explanation:

Mr. JB has a rectangular lot that measures 550 meters by 550 km. What is the area of the land in square meter. He i selling the whole lot for 206,250,000 pesos how much is the price per square meter?

Answers

9514 1404 393

Answer:

  15/22 peso/m^2 ≈ 0.68182 peso/m^2

Step-by-step explanation:

The area is the product of the dimensions. 1 km = 1000 m.

  A = (550 m)(550·1000 m) = 302,500,000 m^2

The price per square meter is ...

  206,250,000/302,500,000 peso/m^2

  = 15/22 peso/m^2 ≈ 0.68182 peso/m^2

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