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
Vitek1552 [10]
3 years ago
11

Find the radius of a circle with an area of 380 in².

Mathematics
1 answer:
Likurg_2 [28]3 years ago
5 0

Answer:

11 inches

Step-by-step explanation:

The area of a circle can be found using:

a=\pi r^{2}

We already know that the area is 380, so we can substitute 380 in for a.

380=\pi r^2

Now, we need to find the radius. To do this, we need to get r by itself

First, divide both sides by pi

380/\pi =\pi r^2/\pi

120.95775675=r^2

Since r is being squared, we need to take the square root of both sides

\sqrt{120.95775675}=\sqrt{r^2}

10.9980796846=r

If we round to nearest whole number, our radius is 11 inches

You might be interested in
I need help: what is this?
givi [52]

Answer:

9

Step-by-step explanation:

first you have to do the 1+2 to get 3 then you divide 6 by 2 and get 3 then you multiply 3x3 to get 9!

3 0
3 years ago
How do you combine like terms with a already answered questions
mestny [16]

Answer:

u put the algebraic like terms together whether they add or subtract each other

7 0
3 years ago
50 points! help, quick please!
kondor19780726 [428]

Answer:

Step-by-step explanation:

The two rules are :-

15 - 10(n - 1)

25 - 10n

6 0
2 years ago
Read 2 more answers
What is the value of x, when x2 + 5 = 21? A) 2 or -2 B) 4 or -4 C) 5.5 or -5.5 D) 8 or -8
lord [1]
X would be equal to 8.
4 0
3 years ago
Read 2 more answers
What is f(-5) if f(x) equals |2x-1|+10?
xxTIMURxx [149]
|2(-5) - 1| + 10
|-10-1| + 10
|-11| + 10
11 + 10
21 is your answer

Hope this helped!
8 0
3 years ago
Read 2 more answers
Other questions:
  • A truck needs 7 gallons of fuel to travel 56 miles. Can the truck travel 48 miles with 6 gallons of fuel? Explain.
    13·2 answers
  • What is 4% of 50% of 5 ?​
    6·2 answers
  • Two equations are given below:
    10·1 answer
  • David wants to buy a new tablet computer. He looks at a sales ad and sees that a computer store is selling a tablet computer for
    14·1 answer
  • Can someone help me with this math homework please!
    10·2 answers
  • Explain why 2(z – 1) = 4(z + 5) has one solution. Choose the best response below. The coefficients of z are the same, but the co
    6·1 answer
  • A park has the dimensions indicated in the diagram. Which expression represent the perimeter of the park?
    10·1 answer
  • Please help me out!!!!!
    7·1 answer
  • HELP
    10·2 answers
  • what is the y-intercept of the line perpendicular to the line y=-3/4x+5 that includes the point (-3,-3)?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!