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
Study the geometric sequence {-4, -84, -1764, -37044, ...}.
Nonamiya [84]

Answer:

              \bold{a_n=(-4)21^{n-1}}

Step-by-step explanation:

a_1=-4\,,\ a_2=-84\,,\ a_3=-1764\,,\ a_4=-37044\quad\implies\ \ r=21

{-84:(-4)=21 and -1764:(-84)=21 and -37044:(-1764)=21}

geometric sequence formula:   a_n=a_1r^{n-1}

a_1=-4\quad and \ \ r=21

a_n=(-4)21^{n-1}

3 0
3 years ago
Ellen drove 357.9 miles. Her car gets about 21 miles per gallon. Which is the best estimate of how many gallons of gas Ellen use
olga55 [171]
The best thing to do is to divide the amount she has driven (357.9) by the miles (21)
As you're looking for an estimate, you have to round them.
357.9 rounds to 360
21 rounds to 20
Therefore, you've got to divide them
360/20= 18
Therefore, Ellen has driven approximately 18 miles
Hope this helps :)
7 0
3 years ago
Read 2 more answers
Is Y=7.5x proportional or non proportional
kipiarov [429]
Hi , the answer is proportional , every time when you see an equation that has the Y first then a number next to a x , that equation tells you that there is a proportional relationship. 
<span />
4 0
3 years ago
Read 2 more answers
Numbers that come one after the other are called consecutive numbers.
KonstantinChe [14]

Answer:

A

Step-by-step explanation:

Here, we want to get the number that will be in the units place

Six consecutive numbers from 33 are;

33 , 34 , 35 , 36 , 37 , 38 ,

Product of 5 and any of the even numbers will yield 0

That means the number on the unit place is 0

3 0
3 years ago
What is this this sos 3x-y=3? (x,y)=?
Mazyrski [523]
Rewrite the equation; 

3x-y=3 
3x-3=y 

Linear equation.

I'm unsure of what the second part asks. Can you rewrite the given question?
6 0
2 years ago
Other questions:
  • Square root of 12 times negative 1 plus square root of 5
    12·1 answer
  • I have this question...​
    9·1 answer
  • Please help me out with this!!!!!!!!!!!!
    10·1 answer
  • What is the pythagorean thereom? And how is it used to solve triangles
    14·1 answer
  • CAN SOMEONE PLEASE HELP ME WITH MY MATH !!!​
    14·2 answers
  • Find the value of √(6-3√5)​
    7·1 answer
  • Is y=0.4x proportional or no?
    15·1 answer
  • What is the 5th term in this sequence a = { 64, -32, 16, ... }
    9·1 answer
  • I'll mark ur answer as brainlist and please show you're workk !!​
    8·1 answer
  • Can someone please give me the (Answers) to this? ... please ...<br><br> I need help….
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!