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
Lera25 [3.4K]
2 years ago
15

Find the circumference

Mathematics
2 answers:
tia_tia [17]2 years ago
7 0

Answer:

6.25\pi

Step-by-step explanation:

A circumference of a circle can be determined by this: 2*pi*r

We're given the diameter. Divide that by 2 to get the radius.

6.45/2 = 3.225

Now multiply that by 2*pi. That gives us 2 * 3.14 * 3.225 = 20.253.

This could've also been done easier by doing pi*d where d is the diameter and you give the answer by multiplying them both. Also works, but the above formula is just key to many things and can also be used to derive the simpler one. Hope it helps! :)

ch4aika [34]2 years ago
7 0

Answer:

6.45π OR 20.253 units.

Step-by-step explanation:

Given, Diameter (d) = 6.45 units

Circumference = πd = 6.45π

If, π = 3.14, then,

6.45π

= 6.45 * 3.14

= 20.253 units

Hope it helps ⚜

You might be interested in
Solve for x: 6x + 1 over 4 (4x + 8) > 12
sukhopar [10]

Answer:

A. x>\frac{10}{7}.

Step-by-step explanation:

We have been given an inequality 6x+\frac{1}{4}(4x+8)>12. We are asked to solve the given inequality for x.

Using distributive property, we will get:

6x+\frac{1}{4}*4x+\frac{1}{4}*8>12

6x+x+2>12

7x+2>12

Subtract 2 from both sides:

7x+2-2>12-2

7x>10

Divide both sides by 7:

\frac{7x}{7}>\frac{10}{7}

x>\frac{10}{7}

Therefore, option A is the correct choice.

3 0
3 years ago
30 Points I NEED HELP ASAP MATH PROBLEM 7th Grade
shutvik [7]

Answer:

-45 =x

Step-by-step explanation:

1/5(4x-2.5) = 5(.4x+10) +3 1/2

Change all to decimal form

.2(4x-2.5) = 5(.4x+10) +3.5

Distribute

.8x - .5 = 2x +50 + 3.5

Combine like terms

.8x - .5 = 2x +53.5

Subtract .8x from each side

.8x-.8x - .5 = 2x-.8x +53.5

-.5 = 1.2x +53.5

Subtract 53.5 from each side

-.5 -53.5 = 1.2x +53.5-53.5

-54 = 1.2x

Divide each side by 1.2

-54/1.2 = 1.2x /1.2

-45 =x

7 0
3 years ago
Joyce is helping to make wreaths for her Women’s Club to sell at a local bazaar. She will be making the bows for each wreath. Sh
jok3333 [9.3K]

Answer:

She can make 34 bows with 10 feet of ribbon left

Step-by-step explanation:

1.5x34=51

61-51=10 feet of ribbons left

51/1.5=x

4 0
3 years ago
Set up a table of values and then graph the line from its parametric form.
lina2011 [118]

Answer:B

Step-by-step explanation:

Edge

8 0
3 years ago
Which of the following is the value of x?<br><br> A. 2<br><br> B.11<br><br> C. 20 <br><br> D. 29
Lunna [17]

Answer:

c

Step-by-step explanation:

180= 45+ (5x+35)

-45 -45

135 = 5x + 35

-35 -35

100 = 5x

/5 /5

x=20

5 0
3 years ago
Other questions:
  • Evaluate, 3(16-9)+12÷3
    5·1 answer
  • consider the circle x^2+y^2-6x-8y=0. a.) find an equation of the tangent line to the circle at the point (0,0). b.) find the cen
    15·1 answer
  • Yolanda purchased stock for $7,000 and paid a 1.5% broker fee. She sold it for $6,325 and paid a 0.5% broker fee. Compute her ne
    5·1 answer
  • For f(x) = 4 - x and g(x) = 2x + x + 7, find the following functions.
    11·1 answer
  • 20 large plastic bottles can be recycled to make 1 fleece jacket. How may fleeces can be made with 280 large plastic bottles?
    11·1 answer
  • Which pairs of ratios could form a proportion 6/9, 10/5
    13·1 answer
  • Height increase (m)
    8·1 answer
  • I need help in mathematics
    6·1 answer
  • A cake recipe calls for 2 1/2 cups of flour. If Mrs. Hizon will prepare for 4 2/3 servings of the recipe, how much flour will sh
    5·1 answer
  • Donovan 2 eats 2 granola bars and drinks 1 glass of orange juice for breakfast every day. The price of a granola bar
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!