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
elixir [45]
2 years ago
15

Ruby is visiting a wildlife center to gather information for her term paper. The center has a circular pond with a diameter of 2

0 meters. What is the approximate area of the pond?
Mathematics
1 answer:
Anton [14]2 years ago
5 0
Well , the diameter means a straight line passing from side to side through the center of a body or figure, especially a circle or sphere. The area means what the extent or measurement of a surface or piece of land. So area means inside so all you need to do is  just to divide each side by knowing what 20/4 is and that = 5 meters
You might be interested in
Round 14.857 to the nearest tenth. A. 15.0 B. 14.8 C. 14.9 D. 10.0
LenKa [72]
C. 14.9  because the second number is 5 so you drop the seven and the 5 and round the 8 up to 9
5 0
2 years ago
Read 2 more answers
When you multiply a number by 1/4
miss Akunina [59]

Answer:

The answer is D

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find two positive consecutive odd integers whose products is 99.
tensa zangetsu [6.8K]

Answer:

9,11

Step-by-step explanation:

let the numbers be x, x+2 (since consecutive odd integers have a difference of 2)

therefore;

x(x+2)= 99

x²+2x=99

I usually solve the sum like this,

we need to find the nearest square number ( number smaller than the number on the R.H.S)

here, it is 81, whose square root is 9. therefore the solution is 9

verification:

(9)²+2*9=99

81+18=99

99=99

hence, 9 is the solution. therefore the positive odd consecutive integers are  

x=9

x+2=9+2= 11

verification:

9*11=99

99=99

L.H.S=R.H.S

5 0
3 years ago
What is the rate of change in y= 2x+3
larisa [96]

Answer:

The Answer is 2

<em>EXPLANATION:</em>

y(x)=2x+3

y(x+Δx)=2(x+Δx)+3

=2x+2Δx+3

Δy=y(x+Δx)−y(x)

=(2x+2Δx+3)−(2x+3)

=2Δx

⇒Δy=2Δx,  Δy/Δx =2

4 0
2 years ago
What are the fourth roots of 2√3 −2i? Enter your answer by filling in the boxes. Enter the roots in order of increasing angle me
yarga [219]

By using the De Moivre's formula, the <em>quartic</em> roots of the <em>complex</em> numbers (in <em>polar</em> form) are z₁ = (√2, π/6), z₂ = (√2, 2π/3), z₃ = (√2, 7π/6), z₄ = (√2, 5π/3).

<h3>How to find the roots of a complex number</h3>

<em>Complex</em> numbers are numbers of the form a + i b, where a and b are the <em>real</em> and <em>imaginary</em> component, respectively. In other words, <em>complex</em> numbers are an expansion from <em>real</em> numbers. The n-th root of a <em>complex</em> number is found by using the De Moivre's formula:

\sqrt[n]{z} = \sqrt[n]{r}\cdot \left[\cos \left(\frac{\theta + 2\pi\cdot k}{n} \right) + i\,\sin \left(\frac{\theta + 2\pi\cdot k}{n}\right)\right], for i = {0, 1, 2, ...,  n - 1}.

Where:

  • r - Norm of the complex number.
  • θ - Direction of the complex number, in radians.

The norm of the <em>complex</em> number is found by Pythagorean theorem:

r = \sqrt{(2\sqrt{3})^{2}+(-2)^{2}}

r = 4

And the direction is determined below:

\theta = \tan^{-1} \left(\frac{2\sqrt{3}}{-2} \right)

θ = 2π/3 rad

Then, the <em>quartic</em> roots of the <em>complex</em> numbers (in <em>polar</em> form) are z₁ = (√2, π/6), z₂ = (√2, 2π/3), z₃ = (√2, 7π/6), z₄ = (√2, 5π/3).

To learn more on complex numbers: brainly.com/question/10251853

#SPJ1

4 0
2 years ago
Other questions:
  • Factor completely. x2 - 3x - 28
    9·2 answers
  • What is $ 2.99 ice cream ;5.5% tax to the nearest cent
    12·1 answer
  • Figure A is a cylinder. Figure B is a cone. Figure C is a sphere. Figure D is at pyramid with rectangular base. Which statements
    10·2 answers
  • What is area if the perimetre is 26
    5·1 answer
  • Simplify the espression Math Help!!!!
    6·2 answers
  • Juan is considering two cell phone plans. The first company charges$40 for the phone and $30 per month for the calling plan that
    11·1 answer
  • I can identify and use inverses to solve equations with one variable
    6·1 answer
  • Can anyone help me with question 7 please?
    15·1 answer
  • Can someone help me with this?
    7·1 answer
  • Dawson baked one pie in 7/12 of an hour. How long will it take Dawson to bake 9 pies
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!