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
Alika [10]
3 years ago
7

The surface inside the circles will be painted green. The surface outside the circles will be painted white. What is the ratio o

f green paint to white paint?
A. π : (4 - π)
B. (4 - π) : π
C. π : (π - 4)
D. π^2 : (4 - π^2)

Mathematics
2 answers:
Leviafan [203]3 years ago
7 0

Answer:

The ratio of green paint to white paint is A. \pi:(4-\pi)

Step-by-step explanation:

To find the ratio of green paint to white paint we need to divide the surface that will be painted green by the surface that will be painted white.

In the graph we can see 4 equal circles. Let be ''R'' the radius of the circles.

We can also see a square. The side of the square is 4R (because the length of the side is 4 times the radius of any circle).

The surface of a circle which radius is ''R'' is equal to :

\pi .R^{2}

The surface inside this 4 circles is equal to :

4.\pi .R^{2}

The surface 4.\pi .R^{2} will be painted green.

The surface outside the circles is equal to 4.\pi .R^{2} subtracted to the area of the square.

The area of the square is :

(4R)^{2}=16R^{2} ⇒

16R^{2}-4.\pi.R^{2} is the surface that will be painted white.

If we make the division between the surfaces :

\frac{GreenSurface}{WhiteSurface} ⇒

\frac{4.\pi .R^{2}}{16R^{2}-4.\pi .R^{2}}

\frac{(4R^{2}).\pi}{(4R^{2}).(4-\pi)}=\frac{\pi}{4-\pi}

We find that the ratio of green paint to white paint is \pi:(4-\pi)

Trava [24]3 years ago
4 0
B / a right .?????/////.
You might be interested in
Write an equation of the line that passes through the given point and is perpendicular to the given line
Otrada [13]

fAnswer:

Step-by-step explanation:

d

4 0
3 years ago
Which points are on the graph of f(x)=(13)x
faust18 [17]
f(x) = 13x

A) -13 = 13 * -1 (yes)
B) 9 = 13 * -2 (no)
C) 27 = 13 * 3 (no)
D) 1 = 13 * 0 (no)

So the answer is only A lays on the graph
3 0
3 years ago
Read 2 more answers
The solution set of an inequality is shown below.
DENIUS [597]
B is the correct answer because it shows the solution set of an inequality
3 0
2 years ago
(2x+0.5)2–(2x–0.5)2 for x=−3.5
kenny6666 [7]
Just substitute wherever x is for example 2 times 3.5
6 0
3 years ago
I don't like math it makes me sad
PSYCHO15rus [73]
It would be 250 in because you see 10x20 is 200 and and 10x10 is 100. But since part of the figure is a triangle you have to dive it by 2 and 100/2=50. 200+50=250
Hope that helps!
8 0
3 years ago
Read 2 more answers
Other questions:
  • Does a polygon usually have more sides or angles?
    11·2 answers
  • State whether the data described below are discrete or​ continuous, and explain why. The exact mass (in grams )of food eaten by
    10·1 answer
  • Please answer asap.....
    7·1 answer
  • Phân tích thành thừa số <br>a) 2√46 + √69<br>b) x√x - y√y<br>c) x-2+√x^2-4
    6·1 answer
  • Anyone know this answer?
    6·1 answer
  • Write an equation of the line that passes through (8,1) and is perpendicular to the line 2y+4x=12.
    8·1 answer
  • Please help me this is due today
    8·1 answer
  • A triangle can exist with side lengths 15cm, 22cm, and 35cm.<br> A<br> False<br> B<br> True
    15·1 answer
  • Please answer correctly! I will mark you as Brainliest! Please No links or Non correct answers or I will report and call Brainly
    15·2 answers
  • (6m³n)²(-4m⁵n) <br><br>must be simplified​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!