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
r-ruslan [8.4K]
3 years ago
10

Saira is using the formula for the area of a circle to determine the value of LaTeX: \piπ. She is using the expression LaTeX: Ar

^{-2}\:A r − 2where LaTeX: A\:=\:50.265\:A = 50.265and LaTeX: r\:=\:4\:r = 4. Use a calculator to evaluate Saira's expression to find her approximation for the value of LaTeX: \pi\:πto the nearest thousandth.
Mathematics
1 answer:
lord [1]3 years ago
8 0

Given:

Area of a circle, A=50.265 sq. units.

Radius of circle, r = 4 units.

To find:

The value of π to the nearest thousandth.

Solution:

Formula for area of a circle is

A=\pi r^2

\dfrac{A}{r^2}=\pi

Ar^{-2}=\pi

Now, using Ar^{-2} expression, we can find the value of π.

\pi=50.265904(4)^{-2}

\pi=\dfrac{50.265904}{4^2}

\pi=\dfrac{50.265904}{16}

\pi=3.141619

Approximate the value to the nearest thousandth (three digits after decimal).

\pi\approx 3.142

Therefore, the approximated value of π is 3.142.

You might be interested in
Of 15 possible​ books, you plan to take 6 with you on vacation. How many different collections of 6 books can you​ take?
Mekhanik [1.2K]

Answer:

5005

Step-by-step explanation:

6 C 15

(6, 15)

15! / (6! x 9!)

The answer is 5005

C is just a way to say the order the books are picked in is random and ! means factorial. Factorial is when you multiply all the previous numbers up to the number it is. For example, 5! = 1 x 2 x 3 x 4 x 5 and 2! = 1 x 2

6 0
3 years ago
What is roster or set builder form?
Trava [24]
<span>Roster form is a set of members placed between brackets, with each of the individual elements are separated by commas.
For example :
</span><span> {2, 4, 6, 8, 10, 12, ...}.</span>
4 0
3 years ago
When I'm with my factor 5 , my product is 20 . what number am I ? explain ..<br> plzz helpp !
jekas [21]
The answer is 4.

The reason is that 5 times 4 is 20.
7 0
2 years ago
Read 2 more answers
Mischief Campbell math class lasts 45 minutes. Math class starts at 9:05. what time does math class end?​
zhuklara [117]

Answer:

The correct answer is 9:50.

Step-by-step explanation:

9:05+0:45=9:50

7 0
2 years ago
Pls answer quickly, this is due today !!!!!!
Flura [38]

Answer:

Step-by-step explanation:

Dear Mrs.Rappa,

I don't know much about this but i do know that saving accounts are risky and she should just set up a checking. Because it's proven that you'll take the risk of losing value in your money. And you take a risk, but to help you more i need to know about what the 5% 7 means. if i do know what it's means, but the 5% is good, it's compound interest which means you get more money on that interest It grows, but as far as the 7 goes, IDK. but the saving %"s are good like yay money, but she takes the risks. So why the risk is there is because of the stock market, and also because the bank takes other clients money for them to pay other client's. So a risk in 7yrs.  

                                                       Sincerely,

                                                           First name Last name Here

4 0
3 years ago
Other questions:
  • Write the following expression in simplified radical form. 5th root (64x to the 7th power w to the 5th power)
    15·1 answer
  • Help please!! Thank you
    5·2 answers
  • Need help this is urgent for my final
    12·1 answer
  • What is the prescribed dosage of a certain medicine for a 6-year-old child if the adult dosage of
    15·1 answer
  • Solve I=Prt for t, if I=105, P=700, and r=0.05
    11·1 answer
  • Kyle drew 4 polygons labeled A,B,C, and D. Figure A has twice as many sides as Figure B. Figure B has 3 vertices. Figure C has h
    12·1 answer
  • Given that y^x=x^y, wich of the following expressions equal dy/dx?
    11·2 answers
  • Write a linear function f with the values f(0) = 1 and f(-2)=-3,
    15·1 answer
  • Help I’ll give brainliest!
    13·2 answers
  • Pls help asap MIDSEGMENTS
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!