3 years ago

What does pi r 2 mean

Mathematics

2 answers:

Neporo4naja [7]3 years ago

8 0

Pi r² is circle's area expression.
So the r is radius,.

inn [45]3 years ago

8 0

In this expression, pi r^2, pi is 3.14 in approximation, considering with r, r means radius, and 2 is the exponent for r (they called this r squared), so pi r^2 is the formula for the area of a circle.

Hope this helped!

Nate

You might be interested in

What would this answer be??

Nikitich [7]

Answer:

Step-by-step explanation:

if the rule is (-x,y) then that just means the x changes

(3,-2) changes to (-3,-2)

4 0

3 years ago

the results of a survey showed that 7 tenths of the housholds surveyed used a computer what fraction of the household surveyed d

RUDIKE [14]

3/10 of the households did not use a computer.
Hope this helps.

8 0

4 years ago

81 + 9 = 9+81<br> true or false

alina1380 [7]

Answer:

true

----------------------------------

7 0

4 years ago

Please help me figure this out! Thank you so much :( i really need it! ❤️

Hoochie [10]

Answer:

$\textbf{A. }x=2i\text{ or }x=-2i\\\\\textbf{B. }(x+2i)(x-2i)$

Step-by-step explanation:

The quadratic can be solved in a straightforward way:

$x^2+4=0\\\\x^2=-4\qquad\text{subtract 4}\\\\x=\pm\sqrt{-4}\qquad\text{take the square root}\\\\x=\pm2i\qquad\text{simplify}$

This tells you that the solutions are ...

2i or -2i

For each root of "a", (x -a) is a factor. Thus the factors of the equation are ...

(x +2i)(x -2i)

8 0

3 years ago

HELP PLEASE 55 Points

Nana76 [90]

Hello! What do you need help with? :)

3 0

3 years ago

Read 2 more answers