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]
2 years ago
13

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

Mathematics
1 answer:
stiks02 [169]2 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
For each of the following research scenarios, decide whether the design uses a related sample. If the design uses a related samp
Wewaii [24]

Answer:1. uses a related sample - repeated measures

2. . does not use a related sample--a

Step-by-step explanation:

Question 1.

step1  A repeated measure design is a design which measures a given sample repeatedly over a given time using different conditions or related measures.

step 2:In the treatment for compulsive hoarding, Here, measures are taken two times ie before and after treatment on the same 50 hoarders which shows a repeated measure, also the design is a within related sample of the same 50 hoarders to give measurement at different conditions  of treatment for  high and low hoarding scores so the design describes  a related sample - repeated measures

Question 2:

step 1 ; An unrelated sample  occurs when Samples being measured do not depend on each other  

Step 2;  1st Sample for comparison by John are random lonely people  and Second Sample are random non lonely people. so the two samples are independent on each other and will give different  measurement based on quality of sleep.   So the design does not use a related sample

8 0
2 years ago
Evaluate the function for the given value: f(x)=2x (to the power of 2) -5x-17, find f(-3)
lions [1.4K]

Answer:

f(-3) = 16

Step-by-step explanation:

You substitute -3 to x.

f(-3) = 2(-3)² - 5(-3) - 17

f(-3) = 16.

As for the coordinates, the coordinates plotted in the graph above are (1,-1) and (2,-2).

7 0
3 years ago
Read 2 more answers
Gabrielle is 10 years younger than Mikhail. The sum of their ages is 74. What is Mikhail's age?
Masja [62]

Answer:

Mikhail is 42 years old

Step-by-step explanation:

4 0
1 year ago
25 divided by 5<br> IF you get it right I will email you!!!
vlabodo [156]

Answer:

5

Step-by-step explanation:

25/5

5×5=25

5 <---answer

7 0
2 years ago
Jeri drew the following model to represent the fraction. What's wrong with her model?
Shtirlitz [24]

Answer: were is the model

6 0
3 years ago
Other questions:
  • If a=2,c=4 e=-6 then 3a-3(2c-e)
    5·2 answers
  • PLEASE HELP ONLY 2 QUESTION I BEG PLEASE HELP ME :9
    9·1 answer
  • Triangles ABC and DEF are similar triangles. What are the lengths of the unknown sides? Question 10 options: A) DE = 24 yd.; EF
    10·1 answer
  • Maya is taking her friends to a concert. Each ticket costs $25, and souvenir T-shirts are $12 each. There is a $4 service fee fo
    11·1 answer
  • Plz help with the problem
    10·1 answer
  • Please help! And 20 points! :3
    10·1 answer
  • Anyone know (Worth lost of points, will mark brainliest!)<br> *I also do not accept links, Sorry!
    13·1 answer
  • Determine if the representation below are proportional (p) or non-proportional (np)
    9·1 answer
  • Which of the following is equivalent to x^5y^2/xy^2 when x is not equal to 0 and y is not equal to 0
    5·1 answer
  • What is the equation of a line that passes through (4, 3) and has a slope of 2?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!