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
sasho [114]
2 years ago
7

How far will a wheel of radius 7 cm travel in two revolutions

Mathematics
1 answer:
Svetllana [295]2 years ago
5 0

Answer:

  • 87.92 cm

Step-by-step explanation:

<u>The travel is 2 circumferences:</u>

  • 2C = 2*2πr = 4πr = 4*3.14*7 = 87.92 cm
You might be interested in
Donna has a $300 loan through the bank she is charged a simple rate The total interest she paid on the loan was $63 As a percent
Black_prince [1.1K]

Answer:

21%

Step-by-step explanation:

($63*100%) / $300 = 21%

3 0
2 years ago
The least common denominator of two fractions is 100. If you subtract the two denominators, their difference is 5 What are the d
SpyIntel [72]
The 2 denominaters are 20 & 25
6 0
3 years ago
Hat is the surface area of a sphere with a diameter of 16 cm
alexgriva [62]
A sphere<span> is a three-dimensional space, such as the shape of a football. A sphere is a body bounded by a surface whose every point is equidistant (i.e. the same distance) from a fixed point, called the center or the origin of the sphere.</span>
6 0
3 years ago
Find the equation of locus of a point which moves such that its distance from (0,2) is one third distance from (-2,3). ( I WILL
scoray [572]

Answer:

8(x^2+y^2)-4x-30y+23=0

Step-by-step explanation:

<u />

<u>Distance formula</u>

\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Let P(x, y) = any point on the locus

Let A = (0, 2)    

Let B = (-2, 3)

If a point moves such that its distance from (0, 2) is one third distance from (-2, 3):

PA=\dfrac{1}{3}PB

Therefore, using the distance formula:

\implies \sqrt{(x-0)^2+(y-2)^2}=\dfrac{1}{3}\sqrt{(x-(-2))^2+(y-3)^2}

Square both sides:

\implies x^2+(y-2)^2=\dfrac{1}{9}[(x+2)^2+(y-3)^2]

\implies x^2+y^2-4y+4=\dfrac{1}{9}(x^2+4x+4+y^2-6y+9)

Multiply both sides by 9:

\implies 9x^2+9y^2-36y+36=x^2+4x+4+y^2-6y+9

\implies 8x^2+8y^2-4x-30y+23=0

\implies 8(x^2+y^2)-4x-30y+23=0

3 0
2 years ago
Which property is illustrated by the following statement<br><br> 3x(-5)=(-5)3x
KIM [24]
3x(-5)=(-5)3x is an example of the Commutative Property of Multiplication. With this property, it does not matter which order they are multiplied in.

Hope this helps! :)
3 0
3 years ago
Other questions:
  • Max estimated it would cost $130 for this week's groceries.The actual cost was $175.Find the percent of error to the nearest ten
    11·1 answer
  • Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality ____ &lt; √17
    10·2 answers
  • A boat that costs $8550 decreases in value by 12% per year. How much will the boat be worth after 3 years?
    6·1 answer
  • Can someone plz help me solved this problem! I’m giving you 10 points! I need help plz help me! Will mark you as brainiest!
    10·1 answer
  • Express the set using the roster method.
    15·1 answer
  • 3. *<br> 25 points<br> Calculate the length of minor arc AB.<br> I
    9·1 answer
  • 8. In the figure below, ABC is a right triangle, a + b - 135 degrees, and c + d = 55 degrees. Find x.
    14·1 answer
  • Which of the following is a quadratic function?
    10·1 answer
  • PLZ HELP!!! I’ll give brainly !!!!!
    5·2 answers
  • PLS HELP THIS IS FOR A TEST DUE TODAY!!!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!