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
Stolb23 [73]
3 years ago
13

Please help greatly appreciated :)

Mathematics
2 answers:
USPshnik [31]3 years ago
4 0

Answer:

Today: Sunday, 11 October 2020

Hour: 23.05 WIB (Indonesian)

<u>_________________________</u>

D = 18

r = 18 ÷ 2 = 9

area of semicircle = πr²/2

area of semicircle = 3.142 . 9²/2

area of semicircle = 3.142 . 81/2

area of semicircle = 254.502/2

area of semicircle = 127.251 cm²

matrenka [14]3 years ago
3 0

Step-by-step explanation:

we know ,

area of circle =πr^2

hence we get from the figure that the diameter of circle is 19 cm and we can find radius

r=d/2

r=18/2=9cm

area of semicircle =πr^2/2

area of Semi circle equals to =22*(9)^2/7/2

=127.2857143

You might be interested in
Suryana bought 16 watches for rs 16000. At what rate should he sell the watches to gain rs 3200?​
dangina [55]

Answer:

Step-by-step explanation:

So if 16 watches is 16000 rs, then if you want to make 3200 more rs, your total from 16 watches should be 19200 (which is 16000+3200)

so the rate per watch should be 19200/16 = 1200

So it should be 1200rs/watch is the rate

8 0
3 years ago
Read 2 more answers
Do alto de um farol cuja altura é de 20 m avista se um navio sob ângulo de depressão de 30°. A que distância , aproximadamente,
Mkey [24]
Esta é a trigonometria . Se você desenhar uma linha a partir do topo da casa de luz para o barco, você terá a hypotonuse de um triângulo. Um truque é lembrar que este é um triângulo especial. É um triângulo 30-60-90 , que tem propriedades especiais mostradas na fixação abaixo . por isso sabemos que o lado adjacente que não é o hyposonuse é x√3 . Agora sabemos que x<span>√3 = 20
Solve for x.
x</span><span>√3=20
divide both sides by </span><span>√3.
x=20/(</span><span><span>√3)
</span>Try not to have square roots (</span><span><span>√)</span> in denomenator so multiply top and bottom by </span><span>√3 and get
x=(20</span><span>√3)/3
x is what we are looking for so the answer is </span>
20<span>√3 m </span><span>ou cerca de 34.64 m</span>










7 0
3 years ago
What is the volume of a box that is 12” x 16” wide and 24 inches in length
solmaris [256]

Answer:

4608

Step-by-step explanation:to find volume you need to multiply.In this case we need to multiply 12*16*24 which equals 4608.

12*16=192*24=4608

3 0
3 years ago
Fator by grouping ab+2a+5b+10
Alenkasestr [34]
Ab + 2a + 5b + 10

= a(b + 2) + 5(b + 2)

= (b + 2) (a + 5)
3 0
3 years ago
Find the mid point of (-4,2) (-7,8)
Mila [183]

Answer:

(-5.5, 3)

Step-by-step explanation:

\left(\frac{-4-7}{2}, \frac{-2+8}{2} \right)=(-5.5, 3)

5 0
1 year ago
Other questions:
  • PLS HELP WILL MARK BRAINLEIST​
    6·2 answers
  • X+1 ^ 16 what is the coefficient of x^5
    10·1 answer
  • Bisi leaves 5km from school. She walks 1km at 4km/h and travels the rest of the way by bus at 16km/h . what is the average speed
    7·1 answer
  • The unit circle has a radius of 1 unit and is centered at the origin. It is dilated so that it passes through the point . What i
    14·1 answer
  • 3(10-2^3)+7 What is this supposed to be please help.
    13·2 answers
  • PLZ HELP 15 PTS
    11·1 answer
  • HELP PLEAAAASEEE LOLOLOL
    9·1 answer
  • A conical container can hold 120π cubic centimeters of water. The diameter of the base of the container is 12 centimeters.
    11·1 answer
  • How do I know an equation is downhill
    8·2 answers
  • What is an equation of the line that passes through the points(-1,1) and (-2,-4)?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!