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
Marrrta [24]
3 years ago
7

How did they get that answer? please answer

Mathematics
1 answer:
OverLord2011 [107]3 years ago
3 0

Answer:

Look at my explanation

Step-by-step explanation:

The circumference of a circle is 2πr, so you can set it up like this since the circumference was 22π.

2πr = 22π

divide both sides by 2

πr = 11π

divide both sides by π

you get r = 11

So your radius is 11.

To find the area, you must do πr^2 ("^2" means squared)

if you substitute 11 for r you get

11π^2

you can do 11 squared first

11^2 = 121

the area of the circle = 121π

Keep in mind that they said to use 3.14 for π

so you can do 121 x 3.14

Final Answer: 379.94

You might be interested in
5 bottles of water and 5 cans of soda cost $8 . The cost of 5 bottles of water is half the cost of the 5 cans of soda . What is
grigory [225]

Answer:

the cost would either be 50 cents or 75 cents

Step-by-step explanation:

8 0
3 years ago
If you borrow $500 from a credit union at 12% annual interest and $250 from a bank at 18% annual interest, what is the effective
Gnesinka [82]

Answer:

B.  11.85% =  12%

Step-by-step explanation:      

500 * .10 + 300 * .15 = 50 + 45 = 95.

95/800 = .11875

.11875 = 11.875%

8 0
3 years ago
Read 2 more answers
A circle with a 10 inch diameter is cut from a square piece of tin with 10 inch sides. To the nearest tenth of a square inch, fi
saveliy_v [14]

The area of the circle is

... A = (π/4)d² . . . . where d=10 in

The area of the square is

... A = d² . . . . . . . . where d=10 in

The amount of the square that is not in the circle is

... (1 -π/4)d² = 0.2146018d² ≈ 21.5 in² . . . for d=10 in

5 0
3 years ago
Ranboo gave tubbo bees. 3/4 of the bees were black, 1/ 8 of the bees were yellow, and the rest were both how many bees are both
uysha [10]
12 of them are black
2 of them is yellow
2 of them are both
5 0
2 years ago
7 3/10 as a percentage
Harlamova29_29 [7]
7 3/10 in percent would be 7.3 \times 100 = 730%

730%

percent means over 100

So... 730% = 730/100 = 7.3
3 0
3 years ago
Read 2 more answers
Other questions:
  • Use the equation m = y + 3 to find the value of m when y = 3.
    8·2 answers
  • Evaluate the following expression: -2|9|.<br><br> 18<br> -11<br> -18<br> 11
    5·2 answers
  • SecФ=2 what does Ф= in degrees and in degrees
    7·2 answers
  • Find the Surface area of the attached image and round answer to the nearest tenth, if necessary.
    9·1 answer
  • Use a calculator to find the correlation coefficient of the data set.
    9·1 answer
  • How can you tell when an equation in one variable has infinitely many solutions or no solution?
    15·1 answer
  • Alexander is a stockbroker. He earns 13% commission each week. Last week, he sold 6,400 worth of stocks. If he averages that sam
    9·1 answer
  • Pls help me i dont care if u get it wrong it wont bother me but pls help me :/
    12·2 answers
  • 6 + 5y - 4y + 10 + 3x - X
    5·2 answers
  • each table in the library can seat up to 7 people. There are enough tables for 175 in all. How many tables are in the library
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!