14-12-2015
Mathematics

contestada

Find the diameter of a circle whose area is 254.34 square inches.

Respuesta :

apologiabiology apologiabiology

14-12-2015

area=pi times radius^2
radius=1/2diameter
2radius=diameter
solver

254.34=pi times r^2
aprox pi to 3.14
256.34=3.14 times r^2
divide both sides by 3.14
81=r^2
square root both sides
9=r
subsitue
2r=d
2(9)=d
18=d
the diameter is 18 inches

Answer Link

Otras preguntas

Suppose you are driving a car around in a circle of radius 157 ft, at a velocity which has the constant magnitude of 42 ft/s. A string hangs from the ceiling of

Which answer choice below best describes Folk Culture characteristics? Usually a rural community anonymous in origin diffuses diffuses slowly through migration

Read this excerpt from "The Intelligent Planet." Instead of typing arcane codes and symbols into a web navigator and being flooded with fifty thousand incorrect

In a transaction processing cycle, capturing data at its source and recording it accurately in a timely fashion with minimal manual effort and in an electronic

Below is a single strand of DNA. Below each letter write the complementary strand of DNA. A –T –G –C –G –G –C –G –A –T –T –T –A –A –G –C

Bus Econ 12.6.39 A publishing company sells 450 comma 000 copies of certain books each year. It costs the company $ 1 to store each book for a year. Each time i

An office building has 8 stories above the ground level and 3 stories under the ground level. How many floors apart are the top and bottom floors of the buildin

Evolutionary relationships between different species of animals are best determined by: Amount of common DNA sequences Ability to interbreed with each other

Does x=12 satisfiy the equation 16 - 1/2x = 3/4x + 1

How many centimeters are in 15 meters?A 0.15 centimetersB 1.5 centimetersC 150 centimetersD 1,500 centimeters