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
I have a friend in need. Her name is Sienna and she has cancer along with co.vid. Please pray for her well being because she rea
velikii [3]

Answer:

She'll be in my prayers

Step-by-step explanation:

When two or three are gathered in His name

3 0
3 years ago
How many sticks would be in pattern n
S_A_V [24]

Answer:

Depending on the equation it will change

n=1 (not in an equation)

Step-by-step explanation:

Pls mark BRAINLIEST

5 0
3 years ago
It takes 40 units of maple sap to produce 1 ounce of maple syrup. Jane and her family are bottling maple syrup in 20 -ounce bott
Setler [38]

Answer:

10,800

-1200

Step-by-step explanation:

Given that :

40 units of maple sap = 1 ounce of maple syrup

Using a 20 - ounce bottle, 2 ounces of air is left

Ounces of actual syrup = (20 - 2) = 18 ounces

Number of maple sap required to fill 15 bottles :

Number of maple saps required to fill 18 ounces bottle :

40 units = 1 ounce

x = 18 ounces

Hence, for 18 ounces of maple syrup :

(40 * 18).= 720 units of maple sap

For 15 bottles of 18 ounces maple syrup:

(720 * 15) = 10,800 units of maple sap

If they had filled each bottle to the top:

(40 * 20 * 15) = 12000 units of maple sap

10,800 - 12000 = - 1200 units of maple sap

5 0
4 years ago
Ceci can drive 225 miles in 3 hours. What is the rate?
tatuchka [14]

Answer:

75

Step-by-step explanation:

5 0
3 years ago
Is there a way to understand inequalities better? I don't get them at all!
AlekseyPX
Ok for inequalities it's this < and > that so here's a example prob 3>2 so as my teacher used it put it "it's like the little number eats the bigger number." For negatives the one that's being eaten would be the one that's the closest to 0 so -3>-5 also alone way of doing this is to make a number line that's another way I was taught how to do these. I hope this helps you!
7 0
4 years ago
Other questions:
  • 2- (-8) + (-3)=<br> 7<br> 12<br> 1<br> 14
    7·2 answers
  • Out of 1,000 students, 80 were asked by random sampling what color they would prefer for their first car. Their responses are sh
    11·2 answers
  • 30 Points!!! What is the simplified form?
    11·2 answers
  • 19, 38, 76, ... find the 8th term
    6·1 answer
  • Please help.<br> Is algebra.
    15·1 answer
  • Find and type in the Constant of proportionality for this graph, AND write the equation in the form of y=kx.
    14·1 answer
  • How do we get to the vertex if this is the function: n(x)= |-1/3x + 1| =2 ??
    12·1 answer
  • BRAINLIEST IF YOUR RIGHT!!
    8·2 answers
  • Help please...........-
    14·2 answers
  • A jar contains some bacteria. Every day the number of bacteria
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!