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
alexandr402 [8]
3 years ago
6

Pls asap... use trigonometry to find the area of a regular 20- gon with each side = 6 in

Mathematics
1 answer:
irga5000 [103]3 years ago
6 0

Answer:

Area of polygon[20 sides] = 1,140 inch² (Approx.)

Step-by-step explanation:

Given;

Number of sides = 20 sides

Length of each side = 6 inch

Find:

Area of polygon[20 sides]

Computation:

Perimeter of polygon[20sides] = 20 x Length of each side

Perimeter of polygon[20sides] = 20 x 6

Perimeter of polygon[20sides] = 120 inch

Apothem[Shortest distance from center] = S / 2tan[180/n]

Apothem[Shortest distance from center] = 6 / 2tan[180/20]

Apothem[Shortest distance from center] = 6 / 2tan[9]

Apothem[Shortest distance from center] = 18.94

Apothem[Shortest distance from center] = 19 inch (Approx.)

Area of polygon[20 sides] = [Perimeter x Apothem] / 2

Area of polygon[20 sides] = [120 x 19] / 2

Area of polygon[20 sides] = 1,140 inch² (Approx.)

You might be interested in
Tamika ran 120 meters in 21.6 seconds. Enrique ran 120 meters in 22.4
Alexus [3.1K]

Tamika ran the fastest time at 21.6 seconds in 120 meters because the faster you run the less time you have on your timer.

8 0
2 years ago
A 2012 Gallup poll surveyed Americans about their employment status and whether or not they have diabetes. The survey results in
posledela

A) See picture for the table.

To make the table, multiply 47774 by 1.5% to get total that have diabetes and multiply 5855 by 2.5% to get total unemployed that have it, then using subtraction fill in the other squares of the table.

B)

Hypothesis:

H0: No association between employment and diabetes.

H1: Association between the two

Using a graphing calculator or Excel, run a chi-test.

Chi squared equals 31.844 with 1 degrees of freedom.

 The two-tailed P value is less than 0.0001

With this information we can reject the null hypothesis and conclude there is an association between diabetes and employment.

C)

Although there is a statistical significance, there really is no practical significance between an incidence rate of 1.5 or 2.5%

3 0
3 years ago
Please answer these questions!!!!
Virty [35]

Answer:

BEC = C. 50

BCD = A. 120

Step-by-step explanation:

BEC

65 + 65 = 130

180 - 130 = 50

BCD = 180 - 60 = 120

BEC is 50

4 0
1 year ago
Read 2 more answers
Use the formula s=32, 512(1.10)^t to calculate your salary after 2 years. Round your answer to the nearest dollar.
Amiraneli [1.4K]

<em><u>Answer:</u></em>

s = $39,340

<em><u>Explanation:</u></em>

Note: I will use the symbol "n" instead of "t" in the solution.

<u>The given formula is:</u>

s = 32,512 * (1.1)ⁿ where "n" is the number of years.

We want to get the salary after 2 years. This means that we will substitute with n = 2 in the above equation and get the value of s.

<u>This is shown as follows:</u>

s = 32,512 * (1.1)²

s = $39,339.52 which is approximately $39,340

Hope this helps :)

8 0
3 years ago
Steven answered 76% of the questions correctly on a test. Enter the percent of the questions Steven did not answer correctly
ziro4ka [17]
24% of the questions were not answered correctly
3 0
3 years ago
Other questions:
  • If 5/4x + 1/2 = 2x - 1/2 what is x
    13·1 answer
  • QUICKLY !!
    5·1 answer
  • Evaluate the radical. <br> 1000−−−−√3 Enter your answer in the box.
    5·2 answers
  • c. If Biff is rational, and has no intention of winning the hot dog eating contest, what is the optimal number of hot dogs he wi
    8·1 answer
  • Someone help and plz make sure it’s right :)
    13·2 answers
  • Non-examples of least Common Multiple
    6·2 answers
  • PLEASE HELP
    10·2 answers
  • Can someone help me with this math problem? and show me the work? please haha
    7·1 answer
  • 3-5b=3-b-4b <br> no solution, one solution,<br> infinitely many solutions
    5·1 answer
  • Un círculo con circunferencia igual a 20 tiene un arco con ángulo central igual a 72°.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!