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
Leni [432]
3 years ago
12

The radius of circle A is r cm. The radius of circle B is twice the radius of circle A. What difference between the circumferenc

e of circle B and circle A (in cm)?​
Mathematics
1 answer:
avanturin [10]3 years ago
3 0

9514 1404 393

Answer:

  2πr cm

Step-by-step explanation:

The circumference of a circle of radius r is ...

  C = 2πr

For a radius of (r cm), the circumference is ...

  A = 2π(r cm) = 2πr cm

For a radius of (2r cm), the circumference is ...

  B = 2π(2r cm) = 4πr cm

Then the difference between the circumferences is ...

  B -A = (4πr cm) -(2πr cm) = 2πr cm . . . . difference in circumference

You might be interested in
18-3+5-12÷4. I am needing help on how to work this problem
AleksandrR [38]

Answer

Step-by-step explanation:

12 divided by 4=3

18-3+5-3

5 minus 3 = 2

18-3+2

18 minus 3 = 15

15+2= 17

answer is 17

8 0
3 years ago
Four friends had dinner togethere.
nataly862011 [7]

Answer:

Your answer is $16.40

8 0
2 years ago
last year Patrick paid £2534 for his annual train ticket this year he has to pay £2612 for his annual train ticket. work out the
Aleonysh [2.5K]

Answer:

Percentage increase in the cost of his train ticket = 3% (Approx.)

Step-by-step explanation:

Given:

Cost of annual ticket paid by Patrick last year = £2,534

Cost of annual ticket paid by Patrick current year = £2,612

Find:

Percentage increase in the cost of his train ticket

Computation:

Percentage increase = [(Current - Base) / Base]100

Percentage increase in the cost of his train ticket = [(2,612 - 2,534) / 2,534]100

Percentage increase in the cost of his train ticket = [(78) / 2,534]100

Percentage increase in the cost of his train ticket = [0.03078]100

Percentage increase in the cost of his train ticket = 3.078

Percentage increase in the cost of his train ticket = 3% (Approx.)

3 0
2 years ago
The current (I) in an electrical conductor varies inversely as the resistance (r) of the conductor. The current is 2 amperes whe
Oksanka [162]
The current is 4 amperes
6 0
3 years ago
Read 2 more answers
Which function is the inverse of g(x)3x-15
Korolek [52]

Answer:

Inverse of g(x)=x+15/3

Step-by-step explanation:

g(x)=3x-15

Let, g(x) be y

y=3x-15

Interchange x and y

x=3y-15

x+15=3y

y=x+15/3

5 0
3 years ago
Other questions:
  • Given f(x)=-2x+5 find the inverse
    9·1 answer
  • -6(-n+4)= 18 help please​
    8·2 answers
  • Solve for x in the equation x^2 + 4x - 4 = 8
    8·2 answers
  • 16 + s = -90 please solve this :)
    5·1 answer
  • PLEASE HELP ILL GIVE MORE IF ITS RIGHT
    13·1 answer
  • PLEASE HELP! Find the accumulated value of an investment of $17,000 at 6% compounded annually for 13 years. (Please show work th
    12·1 answer
  • CHEMISTRY PLEASE HELP AS SOON AS POSSIBLE!! WILL GIVE YOU POINTS!!
    14·1 answer
  • Help please!!!!!!!!!!!!!
    11·1 answer
  • Which graph represents the solution for the equation 3x + 4 = -2x - 2? HURRRY PLEASE​
    9·1 answer
  • Let's find 1/4+1/12
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!