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
jenyasd209 [6]
3 years ago
6

The semi-circle has a diameter of 8. What is the perimeter of the semi-circle?​

Mathematics
2 answers:
skad [1K]3 years ago
6 0

Answer:

roughly 12.56 units

Step-by-step explanation:

Since the perimeter of a circle is 2*pi*r, we can divide it by two or multiply by half in order to find the perimeter of a semicircle

half of the diameter is the radius, so 8/2 =4, r=4

Plug in what we know...

C=2*pi*4

Solve

2*3.14*4

25.12

divide by 2

25.12/2=12.56

12.56 units is the perimeter

morpeh [17]3 years ago
3 0

Answer:

Approx. 20.566 units

Step-by-step explanation:

Find the circumference of the whole circle first by doing:

C = 2πr

r = 4 (8 divided by 2)

C ≈ 25.133

Then divide that by two because a semi-circle is half a circle:

12.566

Then add 8 (diameter) to that number for the open side.

Hope this helps :)

You might be interested in
3.5d + 6.25 = 1 + 5.25d<br><br> The solution is d =
vodka [1.7K]

Answer:

d = 3

Step-by-step explanation:

3.5d + 6.25 = 1 + 5.25d

5.25d - 3.5d = 6.25 - 1

1.75d = 5.25

d = 5.25 ÷ 1.75 = 3

4 0
3 years ago
Seclect all the sets of numbers that are possible values for x in the inequalit, x &gt; - 8. { -10, -8, -6}. { -8, 0, 8}. { -9,
Sauron [17]

Answer:

{ -6, -4, -2}

Step-by-step explanation:

Since x > - 8, x can be any number greater than - 8.

x = -7, -6, -5, -4,...

BUT, it can't be equal because it's not using this sign \geq

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

1. { -10, -8, -6} can't be an inequality of x because it has -10, -8.

2.{ -8, 0, 8} can't be an inequality of x because of -8.

3.{ -9, 1, 7} can't be an inequality of x because -9 isn't greater than x.

4 0
3 years ago
Which of the following is a rule for a rotation?
Nata [24]

Answer:

Hiiiii, the answer is (x,-y)

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Is 10.10 greater than 10.01?
kolbaska11 [484]
Yes, it is 0.09 grater that 10.01
5 0
3 years ago
Read 2 more answers
You charge $5 plus $0.75 per dog you walk at a dog shelter. You earn $14 total working on a Saturday. How many dogs did you walk
san4es73 [151]

Answer: You walked 12 dogs

Step-by-step explanation:

If you charge 0.75 per dog then we can represent that by the expression 0.75x where x is the number of dogs. If you charge $5 for the initial amount, then the whole expression will be 0.75x +5  and that has to equal the amount that you earned working on Saturday.So the equation will be

0.75x + 5 = 14   Now solve for x by first subtracting 5 from both sides

          -5     -5

0.75x = 9      Divide both sides by 0.75

 x = 12  

8 0
3 years ago
Other questions:
  • What pair of fractions is 0.8 between on a number line
    6·1 answer
  • Solve P = 2w + 2h for w.
    13·1 answer
  • The admission fee at an amusement park is $1.50 for children and $4.00 for adults. On a certain day, 304 people entered the park
    14·1 answer
  • Denyce purchased a pair of jeans for $26, a T-shirt for $12, and a pair of socks for $4. What is the total cost of the items?
    10·2 answers
  • Complete the table.
    6·1 answer
  • Mount Everest measures 8,849 meters in elevation and the elevation of the Caspian Sea is -28 meters what’s is the difference in
    10·1 answer
  • This is the last one!!!
    6·1 answer
  • Subtract 15 from 45 and divide by 3​
    9·2 answers
  • 6. This table of values represents a linear function.
    7·1 answer
  • A line is shown on the coordinate grid. Which equation can be used to represent the relationship between x and y for the points
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!