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
givi [52]
3 years ago
10

What is the area of a circle with a diameter of 20 and is divided into 20 congruent sectors?​

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
5 0

Answer:

  • area of each sector: 5π ≈ 15.7 square units
  • area of circle: 100π ≈ 314.16 square units

Step-by-step explanation:

The formula for the area of a circle is ...

  A = πr^2

where the radius (r) is half the diameter. For a circle with a diameter of 20 units, the radius is 10 units and the circle area is ...

  A = π·(10 units)^2 = 100π units^2 ≈ 314.16 square units

__

When there are 20 congruent sectors, each sector has an area of 1/20 of the circle area, so

  sector area = (1/20)·100π unit^2 = 5π units^2 ≈ 15.7 square units

You might be interested in
Can someone help me plz
wolverine [178]

Answer:

75°

Step-by-step explanation:

Recall: SOH CAH TOA

Reference angle = ? = θ

Side length opposite to reference angle = 27

Hypotenuse length = 28

Apply SOH, which is:

sin(\theta) = \frac{Opposite}{Hypotenuse}

Substitute

sin(\theta) = \frac{27}{28}

\theta = sin^{-1}(\frac{27}{28})

\theta = 75 degrees (nearest degree)

7 0
3 years ago
Can someone​ help me with this problem, please? ASAP!!!!
Maksim231197 [3]
Bror cancelled terms which should NEVER be done.
x² + 3x + 2 / (x + 2) =
(x+1) * (x+2) / (x+2)

Cancelling the (x+2) factor we get
x + 1



8 0
3 years ago
You don't have to answer them all but help me out !!
Mandarinka [93]

Answer:

1. 10n

2. 3x^2z^2

3. 2(9n^3 - 3n^2 + 3n - 1)

4. (Put the same thing)

5. There are no common factors so it is completely factored out.

Step-by-step explanation:

For 1, you gotta find the gcf of the numbers and the variables. So, the common factor of 90, 70, 70, and -80 is 10. Nothing else greater than 10 divides these numbers. For the variables, only "n" is the GCF, as there is one "n" and all the other numbers have n^2 and etc.

For 2, same thing, you have to find the gcf for the numbers and the variables.

3. same thing ;-; (gcf is 2 btw, nothing divides the variables because 2 has no "n".

4. theres nothing that divides the numbers or the variables. So, the gcf is just 1.

8 0
3 years ago
Jeremy has 3 pounds of ground beef to make hamburgers. How many 1/3-pound hamburgers can he make?
Tpy6a [65]

Answer:

He can make 9 hamburgers

Step-by-step explanation:

if he makes hamburgers that are 1/3 of a pound then when he makes 3 he uses a whole pound so when he makes 9 he uses all 3 pounds.

7 0
4 years ago
Read 2 more answers
Help me lease for a friend
polet [3.4K]

Answer:

what questions do you need help with

3 0
3 years ago
Other questions:
  • If mollie can travel 250 miles in 90 minutes how far can she travel in 6 hours?
    8·1 answer
  • I need help on this question
    9·1 answer
  • What is the best for the total weight of these cold meats 1 7/8 of bologna 1 1/2 pounds of ham and 7/8 of roast beef ?
    6·1 answer
  • (-5,3);5×=4y+9 can you help me solve ​
    13·1 answer
  • Reggie read a 400-page book in 5 days. on the first da, he read 120 pages. Each day after that , he read the same number of page
    9·2 answers
  • 2. Solve the equation: y- 17 = 6<br> a. y = 11<br> b. y = 23<br> C. y = 12<br> d. y = 33
    13·2 answers
  • Ore:
    9·1 answer
  • Answer all please number 2
    6·1 answer
  • there are 30 cities in a country. Each city has 4 highways coming out of it. How many highways connecting 2 cities are there in
    6·1 answer
  • What is the length of the missing leg? If necessary, round to the nearest tenth.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!