Post a New Question

math

posted by .

The earth has a radius of 6,380 km. The formula for the volume of a sphere is
��
V = 4/3
ðx^3, and the formula
for surface area of a sphere is A = 4ðx^2 . Find the volume and surface area of the earth and write the answer in
scientific notation with two numbers after the decimal

  • math -

    V = 4/3 π r^3
    A = 4 π r^2

    π = 3.1416

    6,380 = 6.38 * 10^3 (scientific notation)

    Insert values and calculate.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    Sphere 1 has surface area A1 and volume V1, and sphere 2 has surface area A2 and volume V2. If the radius of sphere 2 is 3.5 times the radius of sphere 1, what is the ratio of each of the following?
  2. algebra

    what is the volume of a sphere with radius r is given by the formula v=4/3 r^3 Find the volume of sphere with radius 4 meters. use 3.14 for the value of x and round your answer to the nearest tenth.
  3. MAth

    A sphere has a surface area of 28.26 in2. Find the diameter in inches, of the sphere. Use PI Question 2 What is the surface area, in square inches, of a sphere with radius 3.5 in.?
  4. calculus

    A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface …
  5. calculus *improper integrals*

    A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface …
  6. Calculus Homework

    You are blowing air into a spherical balloon at a rate of 7 cubic inches per second. The goal of this problem is to answer the following question: What is the rate of change of the surface area of the balloon at time t= 1 second, given …
  7. Algebra

    A sphere has a radius of 4x + 1. Which polynomial in standard form best describes the total surface area of the sphere?
  8. Algebra II

    12. A sphere has a radius of 4x + 1. Which polynomial in standard form best describes the total surface area of the sphere?
  9. algebra--1 question

    A sphere has a radius of 4x + 1. Which polynomial in standard form best describes the total surface area of the sphere?
  10. math

    3.A rectangular prism has a width of 92ft and a volume of 240ft.Find the volume of a similar prism with a width of 23ft.Round to the nearest tenth, if necessary. 4.A pyramid a height of 5in. and a surface area of 90in^2.Find the surface …

More Similar Questions

Post a New Question