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

My shoes were only 49.50 but I also had to pay the 4% tax. What was my total?

When postwar expansion slowed in the 1950s, an economic stimulus was provided by A. increased consumer goods manufacturing. B. Cold War spending. C. the baby bo

Which answer best describes how the Supreme Court viewed Maryland's taxing of the national bank created after the War of 1812? The Supreme Court decided Marylan

how many centigrams equal 4 decigrams?

Mark each statement if it describes a characteristic or use of a Romanesque church. a. was a school, art gallery, and work project b. had huge columns and round

Which foods do not contain carbohydrates? strawberries oils potatoes beans

This present-day nation was home to the Ottoman Empire.

Which of the following would NOT be considered a cause of technological progress? A. scientific research B. innovation C. patents D. large markets

multiply and reduce to lowest form 1 2/5×1 7/10

The Populist Party of the 1890's was an example of a party formed chiefly to help a__________ . a. candidate register in a national election b. land aria achiev