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
A quantity p varies jointly with r and s. Which expression represents the constant of variation, k?
Zina [86]

The correct answer is p/rs.

In order to find this first state the direct variation with the constant k included.

p = krs

Now to find the value of k, we simply divide away the r and s

p/rs = k

3 0
3 years ago
Read 2 more answers
A 78 gram sample of Uranium loses half of its mass each year. What is the exponential equation? Please explain why A is the corr
Fiesta28 [93]

Answer:

A

Step-by-step explanation:

The first answer is correct because we have a decay factor.

The sample is losing mass, so the number that is being multiplied by a power of x must be less than 1.

If the second answer were used, then the sample would be gaining mass.

8 0
3 years ago
Let f(x)=-6x+3 And g(x)=5x+4 Find F×G and state it's domain
a_sh-v [17]

Answer:b

Step-by-step explanation:

6 0
3 years ago
Consider the following region R and the vector field Bold Upper F.
Natali5045456 [20]

Answer and Step-by-step explanation:

Workings and solutions to a, b, & c can be viewed in the snapshot below:

7 0
3 years ago
A farmer wants to fence an area of 6 million square feet in a rectangular field and then divide it in half with a fence parallel
pogonyaev
3x +2y A =xy = 6,000,000 y = 6,000, 000/x L = 2x + 12,000,000/x 3- (12,000,000/x^2) = 0 3 = 12, 000,000/x^2 sqrt x^2 = sqrt 4,000,000 x = 2,000 and y = 3,000 <span>
</span>
8 0
3 years ago
Other questions:
  • Miki has 3 planting boxes for her flowers. Each box is 4 feet wide and 8 feet long. How much area for planting flowers does Miki
    14·2 answers
  • Please could I have some help? Seven squared equals seven times .........
    15·2 answers
  • Porter and Jacob went to the candy store. Porter bought 1 pound of chocolate and Jacob bought 32 ounces of gummy bears. Who boug
    5·1 answer
  • What is 160 broken down into prime numbers
    6·1 answer
  • Evaluate (x + y)^0 for x = -3 and y = 5.
    15·2 answers
  • Two cones have the same radii but one has a height four times larger than the other. How many small cones would be needed in ord
    12·1 answer
  • Please Find -15(-8) (will mark brainliest)
    8·2 answers
  • Identify the pattern rule for this sequence: 1, 4, 2, 8, 6, 24, 22…
    15·1 answer
  • Solve the system y= 4x + 1 and 3x+2y =13
    11·1 answer
  • What is the equation
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!