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
FinnZ [79.3K]
3 years ago
13

Help anyone can help me do the question,I will mark brainlest.​

Mathematics
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

Step-by-step explanation:

S=pi*R^2=(area of the sector)*(360/angle of AOB)

so 22/7*9^2=99*360/angle of AOB

-> AOB=140

perimeter of circle: 2*pi*R

permiter of sector : 2*pi*140/360*R+ 2R=22+9*2=40

You might be interested in
What is 0.5 repeating in fraction form?
aev [14]
.555555555555555555 =5/9
5 0
3 years ago
The table below shows the height (in inches) and weight (in pounds) of eight basketball players.
Eduardwww [97]
Hello,
Please, see the attached file.
Thanks.

4 0
3 years ago
Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights
Fed [463]

Answer:

a) 615

b) 715

c) 344

Step-by-step explanation:

According to the Question,

  • Given that,  A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 732 babies born in New York. The mean weight was 3311 grams with a standard deviation of 860 grams

  • Since the distribution is approximately bell-shaped, we can use the normal distribution and calculate the Z scores for each scenario.

Z = (x - mean)/standard deviation

Now,

For x = 4171,  Z = (4171 - 3311)/860 = 1  

  • P(Z < 1) using Z table for areas for the standard normal distribution, you will get 0.8413.

Next, multiply that by the sample size of 732.

  • Therefore 732(0.8413) = 615.8316, so approximately 615 will weigh less than 4171  

 

  • For part b, use the same method except x is now 1591.    

Z = (1581 - 3311)/860 = -2    

  • P(Z > -2) , using the Z table is 1 - 0.0228 = 0.9772 . Now 732(0.9772) = 715.3104, so approximately 715 will weigh more than 1591.

 

  • For part c, we now need to get two Z scores, one for 3311 and another for 5031.

Z1 = (3311 - 3311)/860 = 0

Z2 = (5031 - 3311)/860= 2  

P(0 ≤ Z ≤ 2) = 0.9772 - 0.5000 = 0.4772

  approximately 47% fall between 0 and 1 standard deviation, so take 0.47 times 732 ⇒ 732×0.47 = 344.

5 0
2 years ago
Solve 40=4y.<br><br> the solution is y=??
Tanzania [10]

Answer:

y = 10

Step-by-step explanation:

40 = 4y

y = 40 : 4

y = 10

6 0
2 years ago
Read 2 more answers
A case of 24 tennis balls weighs 3 pounds. How much would a shipment of 2560 tennis balls weigh? Please write
kolbaska11 [484]

The weight of a shipment of 2560 balls weighs 320 pounds.

<h3>How much would a shipment of 2560 tennis balls weigh?</h3>

We know that 24 tennis balls weigh 3 pounds. Then the weight of a single tennis ball is:

W = (3 lb)/(24 balls) = (1/8) pounds per ball.

To get the weight of 2560 tennis balls, we just need to multiply the number of tennis balls by the weight of a single ball, then we get:

Total weight = 2560*(1/8) pounds per ball = 320 pounds.

The weight of a shipment of 2560 balls weighs 320 pounds.

If you want to learn more about weight:

brainly.com/question/25973294

#SPJ1

8 0
1 year ago
Other questions:
  • (will give brainliest)
    9·1 answer
  • Maximize Q=3xy^2, where x and y are positive numbers such that x+y^2=2
    13·1 answer
  • Using the information given, select the statement that can deduce the line segments to be parallel. If there are none, then sele
    15·1 answer
  • The difference of twice a number and 3 is at most -21
    6·1 answer
  • In a scale drawing of a painting, 1 centimeter represents 6 Inches.
    11·2 answers
  • 7. y = 2x² + 3 function not function ?
    10·1 answer
  • Select the story problem that this division problem represent 1/2 2/5
    5·1 answer
  • Help me ! Please I’m trying to get pass this !
    14·2 answers
  • How we supposed to find the answer?
    13·2 answers
  • Also this one if not a problem.​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!