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
kipiarov [429]
3 years ago
9

What is the length of the side of a regular octagon if a diagonal is 20 meters long?

Mathematics
1 answer:
Margarita [4]3 years ago
3 0

Answer:

10

Step-by-step explanation:

You might be interested in
In a certain city, there are about one million eligible voters. A simple random sample of size 10,000 was chosen to study the re
Ronch [10]

Answer:

REQUIRED TEST STATICS IS 35.19

Step-by-step explanation:

total size of sample = 10,000

                                     men                            women

voted                           2777                            3466

did not vote                  1444                             2313

By chi square test we can find the relationship between gender and participation in the election

<em>X^2 = \frac{ N(ad-bc)^2}{(a+c)(b+d)+(a+b)(c+d)}</em>

where

a represent  = 2777, b = 3466, c= 1444, d = 2313, N = 10000

Putting values to get chis square statics

<em>X^2 = \frac{ 10000(2777*2313-3466*1444)^2}{(2777+1444)(3466+2313)+(2777+3466)(1444+2313)}</em>

<em>X^2 = = 35.159</em>

HENCE REQUIRED TEST STATICS IS 35.19

3 0
3 years ago
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the
Fed [463]

Answer:

Step-by-step explanation:

6 0
2 years ago
HELP PLEASE 12 POINTS
Vaselesa [24]

Answer:

b. 4m

Step-by-step explanation:

congruent polygons means same shape, size, angles, and sides.

8 0
3 years ago
4. Add one set of parentheses to make the expression equal
Sauron [17]

The expression that is equal to 2022 by adding a set of parentheses is 12 x 12 x 12+ 12 x 12+ 12 x 12 + 12 / (12 /12 + 12 / 12).

<h3>How to solve a long-expression problem?</h3>

In mathematics, parentheses are used to group a set of mathematical terms. In  a long-expression, like the one presented, using parenthesis implies:

  • The terms in the parentheses are solved separately from those outside the parentheses.
  • The terms in the parentheses are solved before solving those outside.
  • Moving the parentheses will affect the result of the whole expression.

Based on this, the expression that equals 2022 is:

  • 12 x 12 x 12+ 12 x 12+ 12 x 12 + 12 / (12 /12 + 12 / 12)

<h3>Let's solve it to prove this result</h3><h3 />
  • 12 x 12 x 12+ 12 x 12+ 12 x 12 + 12 / (12 /12 + 12 / 12)

First, solve the parenthesis first by dividing and then by adding.

  • 12 x 12 x 12+ 12 x 12+ 12 x 12 + 12 / (1 + 1)12 x 12 x 12+ 12 x 12+ 12 x 12 + 12 / 2

Now, let's solve this expression, the first step is to solve the multiplications.

  • 1728 + 144 + 144 + 12/2

Now, solve the division.

  • 1728 + 144 + 144 + 6

Finally, add everything.

  • 1728 + 144 + 144 + 6 = 2022

Learn more about mathematics in: brainly.com/question/12083755

7 0
2 years ago
Need help with this problem
Schach [20]
Here we are:

Triangle PQR is equilateral, all the angles are 60, this means that triangle PSR is an isosceles triangle. 180-90=90  90/2=45  60-45=15
B=15

Hope this helps :) 
6 0
3 years ago
Other questions:
  • What is the probability of getting a 4 each time if a die is rolled 3 times
    15·1 answer
  • What is the domain of f(x) = 5^x?
    5·2 answers
  • Solve for m.<br><br> -5m = -35<br> m = <br> please exsplain your answer theroly
    7·2 answers
  • Sorry if this is a lot. It’s true of false.
    7·1 answer
  • Another way to write (6+7)x
    11·2 answers
  • Find the greatest common factor of 8y4 and 11w2​
    11·1 answer
  • Here is another if you answer first you get a brainlist SIMPLe
    11·1 answer
  • Please please help me I’m on a quiz
    13·1 answer
  • Someone please help me out:(
    12·1 answer
  • A dairy made 97.01 ounces of yogurt. Then a local market bought 84 ounces of the yogurt. How much yogurt does the dairy have lef
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!