1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MissTica
1 year ago
6

Finding the area of a regular polygon​

Mathematics
1 answer:
ddd [48]1 year ago
5 0
<h2><u>Solu</u><u>tion</u><u>:</u></h2>

360° ÷ 10 ÷ 2 = 18°

So the length of the decagon side is:

10 × tan18° × 2 = 20 × tan18°

The area is: ½ × 20 × tan18° × 10 × 10 = 1000 × tan18°

≈ 324.9

.: <u>3</u><u>2</u><u>4</u><u>.</u><u>9</u> is the final answer.

<em>I</em><em> </em><em>h</em><em>ope</em><em> </em><em>this</em><em> helps</em><em>. </em>

You might be interested in
If ∠=,m angle 1 equals 71, find ∠.
cluponka [151]
Do you have a picture?
3 0
2 years ago
Read 2 more answers
Solve the equation for y. 4x+y=-5
sesenic [268]

Y is 5! Good Luck Fam

6 0
3 years ago
Read 2 more answers
A certain drug dosage calls for 8 mg per kg per day and is divided into two doses (1 every 12 hours). If a person weighs 82 poun
frez [133]

Step-by-step explanation:

Dosage per kg per day = 8mg

2 doses = 4mg

If a person weighs 82 pounds =? mg

1kg = 2.205 pounds

So 82 ÷ 2.205 = 37. 195 kg

So he should receive 37. 195 mg every 12 hours

3 0
3 years ago
What is the answer to -1.716 but in a fraction or mixed number form
Alona [7]

Answer:

-1 179/250

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
7th term of (c-d)^10
lutik1710 [3]
\bf (c-d)^{10}\implies &#10;\begin{array}{llll}&#10;term&coefficient&value\\&#10;-----&-----&-----\\&#10;1&+1&(c)^{10}(-d)^0\\&#10;2&+10&(c)^9(-d)^1\\&#10;3&+45&(c)^8(-d)^2\\&#10;4&+120&(c)^7(-d)^3\\&#10;5&+210&(c)^6(-d)^4\\&#10;6&+252&(c)^5(-d)^5\\&#10;7&+210&(c)^4(-d)^6&#10;\end{array}

as you notice, the first term from the binomial, starts off with a highest exponent of 10, and then gradually goes down by 1 on every element.

the second term of the binomial, starts off with an exponent of 0, and goes up by 1 on every element.

now, to get the coefficient
the first coefficient is 1 and the second is the same as the binomial's exponent... those two are simple.... now, to get any subsequent one, we simply "get the product of the current coefficient and the exponent of the first term, and divide it by the exponent of the second term on the next element".

for example... how do we get 10 for the second element, basically 1 * 10/1

that one is simple

now how do we get say, 45 for the 3rd element?
10 * 9 / 2

how do we get 252 for the 6th element?
210 * 6 / 5

and so on, and from there, you can expand each element.
4 0
3 years ago
Other questions:
  • Pls help I'll follow
    10·1 answer
  • 3x^2=4x+4 solve for x
    15·1 answer
  • Evaluate 2d+3 when d =8
    12·1 answer
  • What is the value of x in the equation 2(3/8x-1)=-3+1/2x
    10·1 answer
  • Can you please help me on 2 and 3?
    15·1 answer
  • How can you determine whether a relationship is linear from a graph, a table, or an equation
    15·1 answer
  • In a 2-sample z-test for two proportions, you find the following: X1 = 24 n1 = 200 X2 = 17 n2 = 150 You decide to run a test for
    14·1 answer
  • Help me asap
    13·2 answers
  • I need help ive been stuck on these questions​
    11·1 answer
  • Can anyone help me please i dont understand this
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!