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
seropon [69]
3 years ago
15

Please help me out please:)

Mathematics
1 answer:
Grace [21]3 years ago
7 0

Answer:

56.1 cm²

Step-by-step explanation:

In any circle the area (A) of a sector is

A = area of circle × fraction of circle

   = πr² × \frac{81}{360}

   = π × 8.91² × \frac{81}{360}

   = \frac{8.91^2(81)\pi }{360} ≈ 56.1 cm²

You might be interested in
Mark wants to be a millionaire by the time he retires at age 65. He assumes there is a 6% annual interest rate. If he starts sav
Mashutka [201]

Answer:

B is the answer for this question. :)

Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
Multiply the polynomials (x + 4)(x + 4)
s2008m [1.1K]

Answer:

x^2 + 8x + 16

Step-by-step explanation:

(x + 4) (x+ 4) multiply x by x and x by 4.

x^2 + 4x

Then multiply 4 by x and 4 by 4.

4x + 16

Then combine like terms.

x^2 + 4x + 4x +16

x^2 + 8x + 16

6 0
3 years ago
The angle of a quadrilateral are A.P and the common difference is 10°. find the angles.
xxMikexx [17]

Step-by-step explanation:

So the Ap will be x,x+10,x+20,x+30

Sum of the angles of a quadrilateral is 360

x+x+10+x+20+x+30=360

4x+60=360

4x=300

x=75

So the angles are 75,85,95,105

4 0
3 years ago
Which choice is the correct answer?​
Ulleksa [173]

Answer: Your answer is A. y= 2.5sin x

6 0
3 years ago
Please help im so freakin confused haha
Elina [12.6K]

Given data is that circles are identical. According to this diameters are identical too.

Diameter of the first circle is 4x and for the second 2x+3.

We can make equality  4x = 2x+3 => 2x=3 => x=3/2

Circumference of each circle is C= 2r pi = 2*(3/2) pi = 3 pi

The correct is fifth answer.

Good luck!

4 0
3 years ago
Other questions:
  • Which is the principal value of \sin^{-1}\left(0.43\right)sin −1 (0.43)sine, start superscript, minus, 1, end superscript, left
    11·1 answer
  • Plz answer ASAP need help
    13·1 answer
  • Alx+b) = 4x + 10
    10·1 answer
  • Plzzzzz help me quickly! 20 points to whoever gets correct and I will award brainiest! A lawn service company uses the function
    13·2 answers
  • If a problem have a rate of change is it proportional or not
    10·1 answer
  • Examine the system of equations . y = 4x + 8 y = 4x - 1 Which statements best describe the two expressions? Check all that apply
    15·2 answers
  • When you flip a biased coin the probability of getting a tail is 0.41.
    9·1 answer
  • Help!!! il give brainlist​
    13·1 answer
  • Please help:)
    12·1 answer
  • Evaluate the expression (3-2i)(3-2i) and write the result in the form a+bi ,where a is the real part of your answer and bis the
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!