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
madreJ [45]
3 years ago
13

If the area of a circle is 31.36pi, then what is its radius?

Mathematics
1 answer:
RUDIKE [14]3 years ago
4 0
You would:

31.36 divided by pi and that will give you r2
you would then need to divide r2 by 2 to get the radius and there is your answer
I got:
9.982 for the first part
then 9.982 divided by 2= 4.991 for my final answer
I hope this helps

You might be interested in
A culture started with 5,000 bacteria. After 8 hours, it grew to 6,000 bacteria. Predict how many bacteria will be present after
Vlad [161]

Answer:

6,250

Step-by-step explanation: 6,000 - 5,000 = 1000

1,000/8 = 125

125 X 10 = 1,250

5,000 + 1,250 = 6,250

this would be your answer hope it helps!

say, if this is correct wouldn't mind hitting that brainliest would ya?

5 0
3 years ago
Read 2 more answers
Y = 3x do this fast plz
mash [69]

Answer:

Step-by-step explanation:

3 0
2 years ago
What is the standard deviation of the following data set 1,1.2,4,1.28,4.1,5.3?
VikaD [51]
Memorize the definition of standard deviation: the sd is the square root of the average of the squared deviations of the mean. Wow. Let's do it.

Step 1. First we need the mean. That's easy. Add them up and divide by the count. Check if you get 16.88/5 = 2.81333.

Step 2. Now we're going to subtract this from each of the values, and square the result. Don't worry about negative signs, the squaring will get rid of those. Example for the first number:

(1 - 2.813)^2 = 3.29

The list of numbers I get is (rounded, in reality round as little as possible):

3.29, 2.60, 1.41, 2.35, 1.66, 6.18

Step 3: Add them all up. I get 17.49. 
Step 4: Divide by the count of numbers. 17.49/6 = 2.91
Step 5: Take the square root from this result. SQRT(2.91) = 1.707305

TIP: Use excel to do all these steps, then run the set of numbers through Excel's built-in sd function (called  STDEV.P) and see that you get the same result!
3 0
3 years ago
Can someone pls help me?
Ilya [14]

Answer:

\frac{2 ln(5) }{3 ln(2) }

Step-by-step explanation:

log_{8}(25)  =  \frac{ ln(25) }{ ln(8) }  =  \frac{ ln( {5}^{2} ) }{ ln( {2}^{3} ) }  =  \frac{2 ln(5) }{3 ln(2) }

4 0
1 year ago
Write a word problem that can be solved using 1 3/4 divided by 1/2
ANEK [815]
Micheal has 1 3/4 bowls of cereal. Micheal wants to give half to his sister, Mary, how much should he give her?
7 0
3 years ago
Other questions:
  • Helppppppppp pleassseee
    6·1 answer
  • PLEASE HURRY!!!!!!!!! <br> Given the following formula, solve for h. V= 1/3*3.14*r^2h?
    6·2 answers
  • Using A=bh slove for h
    12·2 answers
  • Find the vertex of the parabola y = 8x2.
    9·1 answer
  • Use a number line to tell how many hundreds,tens,ones you use when you count from $776to $900
    13·1 answer
  • 4(2x - 5) + 15 = 11
    12·1 answer
  • What perfect squares does the square root of 10 lie between
    9·1 answer
  • Question in the picture
    15·1 answer
  • 100 points and brainliest to the one who answers it correctly :]
    5·2 answers
  • 1. Taking your eyes off the road for ____ seconds at 60 miles per hour means you have traveled blindly for half the length of a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!