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
dangina [55]
4 years ago
14

Please help this is just an assignment a few questions.

Mathematics
1 answer:
sertanlavr [38]4 years ago
4 0

Answer:

  A = (1/2)Cr

Step-by-step explanation:

You're supposed to observe that the circle area decomposes into what is approximately* a parallelogram with height equal to the circle radius and base equal to half the circumference. The area is then ...

  A = bh

  A = (1/2)Cr

If you fill in the formula for C, you find this matches the formula for the area of a circle:

  A = (1/2)(2πr)(r) = πr²

_____

* In the limit, as the number of sectors approaches infinity, this is exactly a parallelogram.

You might be interested in
What is a possible factorization of a polynomial with 3, –2, and i as zeros?
storchak [24]
It should be b but i don’t have paper with me so i’m not sure
8 0
4 years ago
H(t) = 4t+20 What is h(_____)=4?
kaheart [24]

Answer:  h(-4)  

Step-by-step explanation:

If h(x) something is equal to 4  then set the equation equal 4  and solve for t.

4t +20 = 4

    -20    -20  

4t = -16

t = -4  

So h(-4) = 4

7 0
4 years ago
A shopkeeper sold a watch for Rs 810 at 10% loss. How much did he pay to buy the watch ? <br>​
Svetlanka [38]

Answer:

Rupees 891

Step-by-step explanation:

If you multiply 810 times 0.1 which is the decimal of 10%, you get 81 which you can add to 810 to get 891 which is the price the shopkeeper payed to buy the watch.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

7 0
3 years ago
What is the factorization of 729x^15 + 1000?
Tcecarenko [31]

Answer:

729x¹⁵ + 1000

This is a case of a sum of cubes.

729 is the cube of 9

1000 is the cube of 10

x¹⁵ is the cube of x⁵

A sum of perfect cubes can be factored into 

(a + b) (a² - ab + b²)

(9x⁵+ 10) ((9x⁵)²-(9x⁵)(10) + 10²)

(9x⁵ + 10) (81x¹⁰ - 90x⁵ + 100) THIS IS THE FACTORIZATION

9x⁵ (81x¹⁰ - 90x⁵ + 100) + 10(81x¹⁰ - 90x⁵ + 100)

729x¹⁵ - 810x¹⁰ + 900x⁵ + 810x¹⁰ - 900x⁵ + 1000

729x¹⁵ - 810x¹⁰ + 810x¹⁰ + 900x⁵ - 900x⁵ + 1000

729x¹⁵ + 1000

Step-by-step explanation:

8 0
3 years ago
Please help mee
NemiM [27]
(2^6)^x=1
(4)^x=1
(4)^0=1
1=1
X=0

(5^0)^x=1
(1)^x=1
x=(-∞,∞)

5 0
2 years ago
Other questions:
  • If m 1 equals 40 find the measure of 4
    10·1 answer
  • If you are using this figure to prove the isosceles triangle theorem which of the following would be the best strategy
    12·1 answer
  • You spend half of your money on a movie ticket. Then you spend half of what you
    10·1 answer
  • Consider the function f(x)=2x^2-8x+5.
    15·1 answer
  • Please, help me +65 points
    10·2 answers
  • The 3 in 43.54 is how much larger than the 3 in 56.37?
    6·1 answer
  • Evaluate 8r-rs when r=6 and s=5
    9·2 answers
  • Find the value of d. 2d-5 =17
    11·1 answer
  • Marco can swim at a speed of 45 m/min. to find how long it will take him to swim 200 m he solves the equation 45 times T equals
    11·1 answer
  • What is 10/8 written as a decimal?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!