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
Anettt [7]
3 years ago
13

Can you please help me with this problem

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
8 0
\bf \begin{cases}
\textit{area of a circle}=\pi r^2
\\ \quad \\
circumference=2\pi r
\end{cases}
\\ \quad \\

12.56=\pi r^2\implies \cfrac{12.56}{\pi }=r^2\implies \sqrt{\cfrac{12.56}{\pi }}=\boxed{r}
\\ \quad \\
thus
\\ \quad \\
circumference=2\pi \boxed{r}\implies 2\pi \boxed{\sqrt{\cfrac{12.56}{\pi }}}
You might be interested in
F(x) =2x^2+4x+5<br> Find: f(a)
MA_775_DIABLO [31]

Answer:

F(a) =2a^2+4a+5

Step-by-step explanation:

just put x= a

5 0
3 years ago
Solve the inequality x^2-4x-7&lt;0
ANEK [815]

Answer:

Inequality Form:

2 − √ 11 < x < 2 + √ 11

Interval Notation:

( 2 − √ 11 , 2 + √ 11 )

Step-by-step explanation:

Solve the inequality for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

8 0
3 years ago
a leaky faucet is losing water and is filling a 5-gallon bucket every 20 hours. At that rate, how many gallons of water will the
Arisa [49]
You can either scale down so you can get to 48 hours or just multiply from 20 to 48 and I'll explain both ways.
Scaling down:
You can find how many hours it takes to get to 1 gallon in the bucket by dividing
20÷5=4; It takes 4 hours to fill it up to one gallon.
You can now divide 48 by 4 to see how many gallons it'll take up to 48 hours.
48÷4=12
Quicker:
Divide 48 by 20;
48÷20=2.4
Now multiply since it filled it up to 5 gallons.
2.4×5=12
It'll fill 12 gallons in 48 hours.
Tell me if this helps!!
7 0
3 years ago
Read 2 more answers
2) True or False: Absolute value is always negative?|
german

Answer:

True. The absolute value produces a positive value, but then when you negate that value, it would always be negative. What's important is we're not taking the negative of the number being absolute valued itself, but rather we're taking a negative of the result.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the midpoint of the line segment with endpoints?
ella [17]

Answer:

B. (1,2)

Step-by-step explanation:

Look at the image down below!! (ノ◕ヮ◕)ノ*:・゚✧

6 0
3 years ago
Other questions:
  • Is 2,6,8,12,16 the divisor of 64
    14·1 answer
  • Given: 2x+3y=6.<br> What is the y-intercept?
    8·1 answer
  • What is the value of 2 in 2,553?
    15·2 answers
  • In a survey of adults in a certain country conducted during a period of economic​ uncertainty, ​% thought that wages paid to wor
    15·1 answer
  • Help<br> one who explains better will get brainliest
    6·2 answers
  • The graph of the function g(x) is shown on the coordinate plane below
    12·2 answers
  • Choose the correct answer to the following math problem.
    6·2 answers
  • I WILL GIVE BRAINLIEST!!!!!
    7·1 answer
  • Alicia records the total number of points scored in two games by 10 players on her basketball team Which box plot represents the
    9·2 answers
  • PLS HELP 50 POINTS
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!