sherrieb09 sherrieb09
  • 11-10-2017
  • Mathematics
contestada

Rearrange the formula A = \pi r ^ ( 2) for r

Respuesta :

altavistard
altavistard altavistard
  • 11-10-2017
Consider re-writing this formula as "A = pi*r^2."  The backslash symbol "\" is unnecessary.

If A = pi*r^2, and we wish to solve for r, then divide both sides by pi:

A/pi = r^2

Taking the square root of both sides,   sqrt(A/pi) = r (r must be positive in this situation).
Answer Link

Otras preguntas

Most prokaryotes contain a single, circular DNA molecule. True or false ?
Help me please >.< ---------------------
2x + y = 3 x - 2y = -1 If equation one is multiplied by 2 and then the equations are added, the result is _____.
How does Sac Fungi move?
Why was the time period between 1865 and 1900 called the Gilded Age?
In 8/100 what is the percent
Perform the following calculations. Express the answers with the correct number of significant figures.a) 7 g - 3.5 g - 2.75 g = b) 200.00 kg - 199.0 kg = c) 25
I really need help on geometry
What is the name Haley in Spanish?
Gabriella wants to tile a room with an area of 320 square feet. The width of the room is 4/5 its length. What are the length and width of the room?