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
Dmitriy789 [7]
2 years ago
14

2 concentric circles have radii 2cm and 3cm respectively, calculate the ratio of their areas​

Mathematics
1 answer:
VikaD [51]2 years ago
6 0

Answer:For the first circle the radius is 2cm and for the second circle the radius is 3cm,by taking the ratio of their areas:

πr^2:πR^2

π cancels out and we are left with only r^2:R^2

r=2cm and R=3cm

Therefore r^2:R^2=2^2:3^2

=4:9

The answer is 4:9

Step-by-step explanation:

You might be interested in
Find the measure of each side of this triangles. Answer in exact form. ​ Find x and y​
Kazeer [188]
I think the answer is 5
3 0
3 years ago
Translate Each sentence into an equation!!!
Amanda [17]
20+2N=52
now subtract 20 from each side, to get 2N alone
2N=32
now divide each side by 2 
N=16
6 0
3 years ago
Please explain someone!!!
77julia77 [94]

Answer: 1 and 2

Step-by-step explanation: 1 and 2 because if you are graphing this the formula to find the slope / the line is y = x + some number. In the formula x is how much the line goes from the x axis and the number is how much it is from the y axis. On #2 the problem is 3y = 2x + 4 so to follow the formula you need to divide both sides by 3 to get y = 2/3x + 4. For #3 you do the same thing to get y = -3/2x -5. Finally for #1 the equation is 2x + 3y = 7 so to get the slope / line you need to put x on the other side so now it is 3y = 7-2x then you divide both sides by 3 and get y = -2/3x + 7 and on 1 and 2 there x is 2/3 (the negative doesn't matter and the random number) so they are parallel.

5 0
2 years ago
2 supra 3 + 1 supra 4
Paha777 [63]
2/3 + 1/4 .....common denominator is 12
8/12 + 3/12 =
11/12 <==
4 0
3 years ago
Question 1 of 25
Murrr4er [49]
The company should expect 235 in sales


plug in 50 for x, 2.1 times 50 is 105, 105 + 130 is 235, y = 35.
7 0
3 years ago
Other questions:
  • Simplify. x+5/x^2+6x+5
    5·2 answers
  • Simplify the following expression.<br> 938 + (-158)
    9·2 answers
  • The area of a triangle is 27 square feet its height is three times the length of its base find the height and base of the triang
    13·1 answer
  • 8(-a+4)=-6a-8+8a<br> Can y’all help me
    10·1 answer
  • Solve for x x/2 = -5
    10·2 answers
  • Find the cube root of 8/125
    13·1 answer
  • How many times do 5 go into 8
    15·2 answers
  • The President's cabinet is best described as a:
    5·2 answers
  • PLEASE HELP THIS IS MY SUS HOMEWORK AND I DONT KNOW IT
    14·1 answer
  • If m+2/5 = 1/2, then which of the following is true?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!