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
mafiozo [28]
2 years ago
15

What is the area of the semicircle (use 3.14 for p)? Please help! Will mark brainlyest.

Mathematics
2 answers:
Andrei [34K]2 years ago
7 0

Answer: the first option: 127.17cm2

Step-by-step explanation:

1. divide the diameter in half to get the radius.

2. multiply the radius squared by pie

3. divide that answer in half

so:

9*9=81

81*3.14= 254.34

254.34/2= 127.17

Marizza181 [45]2 years ago
4 0

Answer:

127.17 cm²

Step-by-step explanation:

  • Area of a semicircle: 1/2*π*r²
  • π (pi) = 3.14
  • r (radius) = d (diamater) / 2 => 18/2 = 9 cm

A = 1/2*π*r²

A = 1/2*3.14*9²

A = 1/2*3.14*81

A = 3.14*40.5

A = 127.17 cm²

Therefore, the area of the semicircle is 127.17 cm²

Hope this helps!

You might be interested in
Write a word problem with dollars and cents that can be solved using subtraction. Include the solution.
Vinvika [58]
Jim have a dollar in 20 cent in his pocket and takes out a dollar how much he have left in his pocket answer- 20 cent
5 0
3 years ago
Read 2 more answers
Pencils A hexagonal pencil is a regular hexagonal prism, as shown
sukhopar [10]

The answer will be multiple times wich the number needs to change

5 0
3 years ago
The function c=1.50(n-2)+5.50
qwelly [4]

Answer:

c =1.50n +2.50

Step-by-step explanation:

c=1.50(n-2)+5.50

The first step is to distribute the 1.5

c= 1.50*n -1.50*2 + 5.50

c = 1.50n - 3.0 +5.50

Now we need to combine like terms

c =1.50n +2.50


3 0
3 years ago
The____ function is the most basic function in a family of functions
docker41 [41]
The answer is: parent function
7 0
3 years ago
Read 2 more answers
Pat is making 5 stools with circular seats that are each 12 inches in diameter. She wants to paint the tops of all the stools br
vivado [14]
Start by finding the area of one of the stools with this formula:
A=(3.14)(12)(12)
Then multiply that answer by five, since there are 5 stools.
Hope this helps :) good luck
6 0
3 years ago
Other questions:
  • The price of a certain new car increases by the same amount each year. The first year it was ​$24,000 and in the 5th year it was
    6·1 answer
  • What is x+2y-4-x-y+2
    13·1 answer
  • A ski resort has 18 inches of snow on the ground. The snow is falling at a rate of 4 inches per hour. Which type of functions be
    7·2 answers
  • What is the value of x?
    13·1 answer
  • Apply the distributive property to create an equivalent expression.<br> −9⋅(5j+k)
    5·2 answers
  • I need help ASAP ? Does anyone know the answer?
    13·1 answer
  • PLEASE HELP ASAP WILL GIVE BRAINLIEST
    5·1 answer
  • Mary ate x pounds of cherries. Leslie ate LaTeX: \frac{6}{9}6 9 more. Write an expression to represent how many pounds of cherri
    10·1 answer
  • Complete the equation to show how many tenths are equivalent to 1/2​
    10·1 answer
  • An aluminum can has a capacity of 2.37 L. What is the capacity of the can in milliliters?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!