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
MAVERICK [17]
3 years ago
5

You unfold chicken wire to make a circular pen. The area of the pen is 78.5 square meters. How many meters of chicken wire do yo

u need to make the pen?
Mathematics
1 answer:
Lelu [443]3 years ago
8 0
Circular pen means you are going to use Area = Pi(r^2). 

So 78.5 = pi(r^2). Divide by pi on both sides to get r^2 = 78.5/pi. Take the square root of that to get r or radius = approximately 4.99. If you need an exact answer then use \sqrt{ \frac{78.5}{ \pi } } for the next part because you are not done yet.

Plug whatever R you use into the circumference formula of Circumference = 2(pi)(r).

If you use 4.99, you do 2(pi)(4.99) which is approximately 31.35. If you use the exact answer, you do 2(pi)(\sqrt{ \frac{78.5}{ \pi} }) which gives you approximately 31.41. 

Either way you'll need about 31 meters of chicken wire but the 31.40796 or ~31.41 is closer to the exact answer. 
You might be interested in
To rationalize the denominator 2 sqrt 10/ 3 sqrt 11 you should multiply the expression by which fraction
malfutka [58]

Answer:

B

Step-by-step explanation:

To rationalise the denominator.

Multiply the numerator/denominator by the radical on the denominator.

The radical on the denominator is \sqrt{11}, thus

Multiply the fraction by

\frac{\sqrt{11} }{\sqrt{11} } → B

7 0
3 years ago
Read 2 more answers
One of the base angles of an isosceles triangle is 40°. Which is the triangle classification according to its
kozerog [31]

Answer:

C. Obtuse

Step-by-step explanation:

7 0
2 years ago
Whats the name of this shape
Step2247 [10]

Answer:

The name of the shape is called a

<h3>Square frustum</h3>

Hope this helps you

5 0
2 years ago
Read 2 more answers
What is the quotient of the division below? 96-3= O 13 O 23 O 31 o 32​
Anastaziya [24]

Answer:

the answer is 32

Step-by-step explanation:

hope this help have a good day

4 0
3 years ago
I need help ASAP!!
Studentka2010 [4]

Answer:

  D.  (x-5)^2 = 36

Step-by-step explanation:

If you add 11 to the given equation, you get ...

  x^2 -10x = 11

Then you can add the square of half the x-coefficient to complete the square.

  x^2 -10x +25 = 11 +25

  (x -5)^2 = 36 . . . . simplify to the appropriate form

5 0
3 years ago
Other questions:
  • The radius of the cone is 1.5 inches, and its height is 3 inches. If the diameter of the bubble gum ball is 0.5 inches, what is
    8·1 answer
  • Why help me!!!!!!!!!!
    7·1 answer
  • Pheneg-Xu drinks 1 cup of milk every day.how many gallons does he drink each week.
    13·1 answer
  • URGENT NEEDS ANSWERED RIGHT AWAY!
    6·2 answers
  • If m&lt; 1 = 10x + 4 and m &lt;2 = 5x-4, find m&lt; 2
    7·1 answer
  • How to solve 25=(b^3)÷3
    6·1 answer
  • 2 x - 5 ( 5 - x ) = 24
    5·1 answer
  • Sacar arista a un rectangunlo , cuadro y triangulo
    7·1 answer
  • What is the value of x?<br><br> A. 142<br> B. 152<br> C. 76<br> D. 71
    7·1 answer
  • Evaluate the sum from n equals four to ten of quantity five n plus two.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!