jamiecoolgal1923 jamiecoolgal1923

23-01-2020
Mathematics

contestada

A professor gives his students 9 essay questions to prepare for an exam. Only 3 of the questions will actually appear on the exam. How many different exams are possible?

Respuesta :

fahadisahadam fahadisahadam

23-01-2020

Answer: 84

Step-by-step explanation:

The total number of the questions is 9

Possible question is 3

This is combination

Therefore n=9 and r=3

Combination formula=n! / ((n-r)! r!)

9C3=9! /((9-3)! 3!)

=362880 /(6! 3!)

=362880/4320

=84

Answer Link

Otras preguntas

After sales tax is added the total cost of a $58 purchase $61.48 what is the sales tax rate on the purchase?

to meet the increased demand, world food production must rise 50% by 2030. Write this percent as a fraction in simplest form.

A speedy river barge bound for New Orleans, Louisiana leaves Baton Rouge at 9:00 a.m. and travels at a speed of 10 miles per hour. A rail transport freight also

Describe how trade contributed to United States territorial growth.

Solve for " x " --- 20/x = 4/9 ? explain. (:

What is a protein? Describe the monomers and polymers of protein? What are the functions of proteins? What atoms make up proteins?

What happened during the holocaust?

Ms. Booth has 16 red buttons and 24 blue buttons. She is making finger puppets. Each puppet has the same number of blue buttons and red buttons. How many puppet

Why can't you change the subscripts in a formula in order to balance a chemical equation?

in an A.P,the sum of first ten terms is -150 and the sum of next 10 terms is -550.Find the A.P