Seudónimo Seudónimo

01-06-2018
Mathematics

contestada

Help please
2. By what factor does the area change if the radius is doubled? Explain.

Help please 2 By what factor does the area change if the radius is doubled Explain class=

Respuesta :

LammettHash LammettHash

02-06-2018

The area of a circle with radius [tex]r[/tex] is [tex]\pi r^2[/tex]. If the radius is doubled, then the area would become [tex]\pi(2r)^2=4\pi r^2[/tex]. So the area would be increased by a factor of 4.

Answer Link

Otras preguntas

Which body of water is in the Canadian Shield? Labrador Sea Baffin Bay Hudson Bay Bering Sea

A phosphate buffer is involved in the formation of urine. The developing urine contains H2PO4 and HPO42- in the same concentration as present in blood plasma. I

Question 7 (1 point) How can astronomers see stars right next to the sun? A) with space telescopes B) they can't C) during lunar eclipses D) with infrared teles

Using Parallel Lines Find m 1 and m 2. Explain your reasoning.

Why was it important for the colonists to control bunker hill

hypertonic, hypotonic, isotonic?? “the concentration of the solute in the solution is lower than the concentration inside the cell“

in which state would you be most likely to need to be prepare for tsunamis events in which volcanic eruptions cause destructive ocean waves

lliana is painting a picture. She has green, red, yellow, purple, orange, and blue paint. She wants her painting to have four different colors. If order does no

Senators must be at least 30 years of age. Question 26 options: True False

What is the number of moles and the mass of Mg required to react with 7.50g of HCl and produce MgCl2 and H2? 1.25 g 2.50 g 5.00 g