Homework Help: mathematics

Posted by Dolceza on Thursday, June 3, 2010 at 6:58pm.

the pretty perfume company designed a new perfume bottle. The bottle is to be a spherical shape with a diameter of 7cm.

a) determine the volume and surface area of this bottle.

b) The spherical bottle has a conical shaped lid with a diameter of 5cm and a height of 4.5cm. Calculate the volume and surface area of the lid. Before you can use the surface area formula for a cone you will need to find the slant height of the lid.

Please show your work so I can understand how to do it.

mathematics - Reiny, Thursday, June 3, 2010 at 9:25pm
So your bottle has a radius of 3.5 cm

volume of sphere = (4/3)π r^3
surface area = 4π r^2

sub in r = 3.5 into both equations.

b) the surface area of a cone, without its base, is
πrs, where s is the slant height, and r is the radius.
we have to first calculate s by
s^2 = 2.5^2 + 4.5^2
s = √26.5

so surface area = π(2.5)(√26.5))
= ....

Answer this Question

Related Questions

Math - the pretty perfume company designed a new perfume bottle. The bottle is ...
math - Write down the objective function and the constraints for the given ...
math - fractions - Hello, I need help for my 5th grader...Solve the problem by ...
math - company A:1/5 company B:4/25 company C:2/5 company D:3/20 Gabriellas ...
economics - Assume that a bottle of wine sells for $10. The government decides ...
English - How can I make a good project for school re. promotion about perfume ...
physics - During a Science day learners use a plastic cold drink bottle as a ...
Algebra 2 - One bottle contains 2 1/2 times as much water as another bottle. The...
science - what volume of helium would be in a balloon the size of a soft drink ...
physics - The record for the largest glass bottle was set in 1992 by a team in ...

For Further Reading

First Name:
School Subject:
Answer: