17-05-2018
Mathematics

contestada

An official NCAA basketball has a diameter of 9 in. How much leather is required to cover the ball?

Respuesta :

17-05-2018

They are asking of the surface area of the ball.

Surface area of a sphere = 4 * pi * radius²

If the diameter is 9, then the radius is 4.5

4 * pi * (4.5)²
4 * pi * 16.25
65 * pi
≈ 204.2 inches

Approximately 204.2 inches of leather are needed to cover the ball.

Answer Link

ACCESS MORE

Otras preguntas

An arithmetic sequence is represented in the following table. Enter the missing term of the sequence.

The Central Nervous System is: a. all portions of the nervous system that are not encased in bone b. made up of the brain and spinal chord c.the portion of t

Elizabeth has two ribbons. One is 1/7 foot long. The other is 2/5 foot long. Write them with a common denomitator

During the month of May, direct labor cost totaled $9,240 and direct labor cost was 30% of prime cost. If total manufacturing costs during May were $80,100, the

Describe the role of the Circulatory/Cardiovascular system in helping the body rid of carbon dioxide

Equal masses of he and ne are placed in a sealed container. What is the partial pressure of he if the total pressure in the container is 6 atm?

Select the correct answer, In this excerpt from HG Wells's The Time Machine what can you inter about the Time Traveller?

___________________ refers to applying safeguards designed to lower risks to a level deemed acceptable but without eliminating such risks.

John bought a car for $65,000. If the value of the car depreciates by 8% each year, how much will the car be worth at the end of 2 years?

Genetic tests that detect mutations in the BRCA1 and BRCA2 oncogenes are widely available. These tests reveal a number of mutations in these genes - mutations t