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
Mariulka [41]
4 years ago
8

A=3.14...r^2 solve for r

Mathematics
1 answer:
stiv31 [10]4 years ago
7 0
A=3.14r^2\\
r^2=\dfrac{A}{3.14}\\
r=\sqrt{\dfrac{A}{3.14}}
You might be interested in
What is the length of the hypotenuse of the triangle?<br> A<br> 7 cm<br> B<br> 3 cm
photoshop1234 [79]

Answer

The answer would be 58

Step-by-step explanation:

3 to the power of 2 is 9

7 to the power of 2 is 49

add that you get 58

3 0
3 years ago
a classroom has a length of 20 feet and a width of 30 feet. The headmaster decided that tiles will look good in that class. if e
iogann1982 [59]
The area of the room must equal the sum of the areas of the tiles...

20*30=n(2*3)

600=6n

n=100

So 100 tiles are needed.
8 0
3 years ago
Read 2 more answers
A marathon runner runs at 7.6 mph for three and a half hours.<br> How many miles has he run?
GalinKa [24]

Answer:

26.6 miles

Step-by-step explanation:

distance = speed × time ( time is in hours )

              = 7.6 × 3.5

             = 26.6 miles

5 0
3 years ago
In a local election 138,201 people voted for the winning candidate. If she won by 29,288 votes, about how many votes did the oth
max2010maxim [7]
You have to use subtraction because it says how many

3 0
3 years ago
Read 2 more answers
In the diagram, mBDA = 150°. Find mBDC.
Dafna1 [17]

Answer:

a.  70°

Step-by-step explanation:

m∠BDC + m∠CDA = m∠BDA

-3x + 34 - 2x + 56 = 150

-5x + 90 = 150

-5x = 60

x = -12

m∠BDC = -3x + 34 = -3(-12) + 34

              = 36 + 34 = 70°

6 0
3 years ago
Other questions:
  • Please help me with 13 12 10 9 8 6 BONUS:7 44 POINTS!!!
    10·2 answers
  • If a polygon is a pentagon, then it has 5 sides hypothesis conclusion
    6·2 answers
  • Find the value of x in the figure
    13·1 answer
  • What is 84 = x ? and how to get the answer
    15·1 answer
  • Elephants drink 225 liters of water a day how many liters for 2 days
    14·2 answers
  • Pls help ill give brainiest
    14·1 answer
  • Asap please! The triangles shown below must be congruent. 47 62 71
    10·2 answers
  • This would really be appreciated!
    13·2 answers
  • Dayami works at Future Shop and earns $10.50/h plus 6% commission on sales. Last
    7·1 answer
  • The number of siblings each student at a softball game has is recorded. The graph below shows the probability distribution of ha
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!