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
Lunna [17]
4 years ago
6

Which explanation can be used to derive the formula for the circumference of a circle?

Mathematics
2 answers:
MrRa [10]4 years ago
8 0
First, find the relationship of the circumference to its diameter by finding that the length of the diameter wraps around the length of the circumference approximately π times. Use this relationship to writing an equation showing the ratio of circumference to diameter equaling π. Then rearrange the equation to solve for the circumference. Substitute the diameter for 2 times the radius
DaniilM [7]4 years ago
5 0

Answer:

B. Find the length of the diameter and the length of the circumference of the circle. Divide the length of the circumference by the length of the diameter. Set up an equation showing the ratio of the circumference to the diameter equal to ​ π ​. Then rearrange the equation by solving it for the circumference. Substitute 2 times the radius for the diameter.

Step-by-step explanation:

I just took the test

You might be interested in
A golf ball is hit off a tee toward the green. The height of the ball is modeled by the function h(t) = −16t2 + 96t, where t equ
Ierofanga [76]

Answer:

t = 3; It takes the ball 3 seconds to reach the maximum height and 6 seconds to fall back to the ground.

Step-by-step explanation:

To find the axis of symmetry, we need to find the vertex by turning this equation into vertex form (this is y = a(x - c)² + d where (c, d) is the vertex). To do this, we can use the "completing the square" strategy.

h(t) = -16t² + 96t

= -16(t² - 6t)

= -16(t² - 6t + 9) - (-16) * 9

= -16(t - 3)² + 144

Therefore, we know that the vertex is (3, 144) so the axis of symmetry is t = 3. Since the coefficient of the squared term, -16, is negative, it means that the vertex is the maximum. We know that it takes the golf ball 3 seconds to reach the maximum height (since the t value of the vertex is 3) and because the vertex is on the axis of symmetry, it would take 3 more seconds for the ball to fall to the ground, therefore it takes 3 + 3 = 6 seconds to fall to the ground. The final answer is "t = 3; It takes the ball 3 seconds to reach the maximum height and 6 seconds to fall back to the ground.".

6 0
3 years ago
2x + 3<br> 25°<br> S<br> Q<br> 3x – 170
Tpy6a [65]

Answer:

no idea what to find would you please like to explain about this question

6 0
3 years ago
Need help. asap. also need an explanation for the problem. :)
Maurinko [17]

Answer:

124858

Step-by-step explanation:

The first 4 digits are simple, you multiply the first digit of the equation by the 2nd digit and then for the other 2 you multiply the first digit of the equation by the 3rd digit.

6 + 2 + 8

6 * 2 = 12

6 * 8 = 48

Then the last 2 digits are the sum of the products of the 1 and 2 and 1 and 3 and subtract it by the 2

12 + 48 = 60

60 - 2 = 58

Put them together

7 0
3 years ago
What is the slope of the line?<br><br><br><br> slope = 1/3<br> slope = -3<br> slope = 3
leonid [27]
The answer would be 3
8 0
3 years ago
Read 2 more answers
Benji and Joel are raising money for their class trip by selling gift wrapping paper. Benji raises $15 by selling 4 rolls of red
Ahat [919]
The price for red paper = 1.25
the price for foil = 2.5
4 0
3 years ago
Other questions:
  • What’s the value of a <br> X+1+a<br> 3x+2
    5·1 answer
  • Solve: 2/3 x - 4 = -2 A) -3 B) -4 C) -9 D) 3
    7·2 answers
  • 4х – бу =11<br> 3х + 2y = 9
    15·1 answer
  • Use the quadratic formula to solve this equation to 3sf: 5x^2-2x-11=0
    13·2 answers
  • How did you get that answer
    15·2 answers
  • A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate
    14·1 answer
  • Please help and show your work, will mark brainliest
    13·1 answer
  • Does anybody know how to do repeating signs on big ideas math, like 67.8 repeating?
    15·2 answers
  • What is the graph of y = |x − 3| + 1
    12·1 answer
  • Find the value of the expression a--b* for a = 2 and b= 1
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!