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
Brrunno [24]
3 years ago
5

The area of a circle is 4π square kilometers. What is the radius? Write your answer in simplest form.

Mathematics
1 answer:
Mariana [72]3 years ago
7 0

Answer:

2 km

Step-by-step explanation:

4π = π × r²

r² = 4

r = 2

You might be interested in
!!!Please help will give the brainliest, and please do not put in a silly answer because you want some points or I will report y
Amanda [17]

Answer:

In short, they are all quadrilaterals.

Step-by-step explanation:

<u>Rectangle:</u>

- Every angle equals 90 degrees

- Opposite sides are equal and parallel

<u>Square:</u>

- Every angle equals 90 degrees

- Opposite sides are equal and parallel

- Diagonals within the square are perpendicular

<u>Parallelogram:</u>

- Opposite sides are equal and parallel

- Opposite angles are equal

- Any two angles next to each other have to equal 180 degrees, since it would be a line

<u>Rhombus:</u>

- Opposite angles are equal

- All sides are equal

- Opposite sides are parallel

- Diagonals within the square are perpendicular

- Any two angles next to each other have to equal 180 degrees, since it would be a line

<u>Trapedzoid:</u>

- There is only one pair of parallel lines

<u>Kite:</u>

- There are two pairs of equal signs

- There are two equal angles

- You can look at it like two equal triangles glued together

Really hope this helped you!

7 0
3 years ago
How do I find the slope of the line through (–9, –10) and (–2, –5)?
storchak [24]
Answer:
slope of line is 5/7

Explanation:
The slope of the line can be calculated using the following rule:
slope = \frac{y2-y1}{x2-x1}

The given points are:
(-9,-10) which represent (x1,y1)
(-2,-5) which represent (x2,y2)

Substitute with the points in the above equation to get the slope as follows:
slope = \frac{-5-(-10)}{-2-(-9)} = 5/7

Hope this helps :)

4 0
3 years ago
Read 2 more answers
Please help me with this ASAP
Digiron [165]

Answer:

270.00 divided by 32 = about $8.44

4 0
2 years ago
PPPPLLLLLLSSSS I NEEED HELP
Nuetrik [128]

Answer:

x=63

Step-by-step explanation:

The two interior angles add up the the exterior angle, so 51+x+12=2x. From there, solve to get x=63. Hope this helped!

7 0
2 years ago
HELP ASAP HELP ASAP HELP ASAP HELP ASAP
Shtirlitz [24]

The equation is P= 2w + 2(w+4.1)

The width is 8.2cm

5 0
2 years ago
Other questions:
  • Solve this I don't understand this
    5·1 answer
  • Which of the following represents "Twice the abscissa increased by three times the ordinate is ten"?
    15·2 answers
  • What is the greater two years for 14 months
    13·1 answer
  • Select the correct answer.
    15·2 answers
  • The percent change from $10 to $27
    5·1 answer
  • Which value could be the length of the missing side of the triangle? (the side of the triangle has 5, the bottom has a 12 and th
    12·1 answer
  • Please help me with this one
    6·1 answer
  • Use a calculator to find the mean of the data. {21.6, 25, 20.6, 24.6, 20.3, 25.2, 22.8, 24.1, 22.5, 22.5, 22.6, 22, 24.6, 23.6,
    15·1 answer
  • Jocelyn said that the triangle below is not a right triangle. Her work is shown below. Explain what she did wrong and show Jocel
    14·1 answer
  • How many 5 minutes intervals are there in 1 ¼ hours?​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!