savagebree
savagebree savagebree
  • 11-05-2017
  • Mathematics
contestada

What is the area of a circle with circumference of 9.42 inches?
(Use 3.14 for p.)

Respuesta :

Аноним Аноним
  • 11-05-2017
Formula for circumference= 2πr but since the problem says to use 3.14 for pi, then you can write the equation:

C=2*3.14*r
9.42=2*3.14*r
Divide both sides by 3.14 and you'll get
3=2r and divide by 2 so
r=1.5

then you can substitute 1.5 into circle area formula
A=3.14*1.5^2
A=3.14*2.25
A=7.065 square inches

Answer Link

Otras preguntas

How many solutions are there to the system {y = 1/3x + 5 {x + 3y = 6
Analyze the benefits and drawbacks of conducting police actions versus declaring war. Which do you think is better? Why? Your answer should be no fewer than sev
3. Jolene gets paid 17 cents a tree for tree planting up north. In one week she planted 2437 trees. What i her wage?
A collection of stamps consists of 22¢ stamps and 40¢ stamps. The number of 22¢ stamps is three more than four times the number of 40¢ stamps. The total value o
Your grandparents have gifted you a bicycle as a birthday present. Write a short diary entryexpressing your happiness on receiving the gift.​
How did the slaves' treatment by Europeans compare to their treatment by other Africans?
GIVING BRANIEST!!!!!!!
Geothermal electricity-generating plants produce Your answer: ash. methane. O carbon dioxide. no excess heat. no greenhouse gases.
5. Name one crustacean that lives in the ocean, one that lives in freshwater, and one that lives on land.
hey in need of help please help me