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
ad-work [718]
3 years ago
9

What is the area of a semicircle whose perimeter is 72cm

Mathematics
1 answer:
Nuetrik [128]3 years ago
7 0

Answer:

A = 307.9 sq/cm

Step-by-step explanation:

Find the radius of the semi-circle

diameter + half the circumference = 72 cm

2r + pi*r = 72

r(2+pi) = 72

 

r = 72%2F%28%282%2Bpi%29%29

r = 14

:

what will be the area of that semicircle?

A =1%2F2*pi%2A14%5E2

A = 307.9 sq/cm

You might be interested in
Help me please im stuck
Kay [80]

Answer:

28.26

Step-by-step explanation:

A=3.14 r^2

3.14x3x3

3.14x9

28.26

Hope this helps! :)

(Please don't hate on me if its wrong)

4 0
3 years ago
if a class of 20 students 40% are boys. twenty-five percent often boys and 50% of the girls wear glasses. how many students wear
shtirl [24]
2 boys and 6 girls wear glasses, so 8 students wear glasses
7 0
3 years ago
Please help me this is. big
kramer

Answer:

C. = 69.5

Step-by-step explanation:

The median or the average between 80 and 59 is 69.5

Hope this helps! :)

8 0
3 years ago
Tom opens a bank account and makes an initial deposit of $15,000. The banker tells Tom that he is going to receive an annual rat
snow_tiger [21]
Well if the interest is compounding  yearly at 3.5% the amount would be $25,130.23
5 0
3 years ago
Read 2 more answers
How many minutes are in m hours?
notka56 [123]

Answer:

the 2nd one (60m minutes)

Step-by-step explanation:

60 minutes in an hour, so if m is the number of hours you would times that by the number of minutes in an hour which is sixty. 60m is 60 times m

8 0
3 years ago
Other questions:
  • Find the percent change:<br><br> from 80 to 100
    11·1 answer
  • A bicycle shop advertised all mountain bikes were priced at 1/4 discount.
    14·1 answer
  • The names of 11 boys and 9 girls from your class are put into a hat. What is the probability that the first two names chosen wil
    12·1 answer
  • John bought 3 bottles of an energy drink for $4.50. Write an equation relating the total cost y to the number of energy drinks b
    13·1 answer
  • Suppose the correlation coeffecient
    12·1 answer
  • What is 941 divided by 2 equal long division
    7·1 answer
  • Single each is regular place is $349 it is on the clearance for 30% off and the customer uses a 15% off coupon after that what i
    9·1 answer
  • What’s the correct answer for this question? Select all that Apply
    7·1 answer
  • HELP! IS THIS PROPORTIONAL
    12·1 answer
  • A class trip cost a total of $414, including a museum ticket and lunch for each student. Three students were sick on the day of
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!