Suppose I have 100 objects. From these 100 objects, I will choose 10. Of the 10 I choose, only 2 can be copies of the other objects I have chosen. So 3 of 1 object or 2 of 2 objects. First, how many...

Suppose I have 100 objects. From these 100 objects, I will choose 10. Of the 10 I choose, only 2 can be copies of the other objects I have chosen. So 3 of 1 object or 2 of 2 objects. First, how many...

An unbiased coin is tossed five times. Find the probability of the given event. (Round your answer to four decimal places.) The coin lands heads more than once.

He was given a list of possible team and field combinations for Monty’s game without knowing the name of the team Monty plays for or the field that the team is playing on. The list Uncle Pete was...

It's a problem of combination.

I know the answer is 20 but i can't figure it out

Combinations with color problems for kids

Pls solve

There are 30 students in a history class. Twenty percent of the students are randomly chosen to participate in a teacher evaluation

Combination problem

If there is small medium and large pizzas (3 sizes) and up to 4 toppings..how many different ways can u order the pizzas

A fan of country music plans to make a custom CD with 12 of her 30 favorite songs. How many different combinations of 12 songs are possible? Is it practical to make a different CD for each possible...

How many ways can 6 balls be put into 4 boxes? What formula is used to solve?

1. A florist sells 5 colors of roses. How many different combinations of 3 different colors are possible?

4 boxes, 10 balls, none of them can be empty. how many combinations are there? How do you find the answer?

You tell the cashier to surprise you with the toppings you get. What is the probability that you get 3 toppings? express your answer as a fraction or a decimal number rounded to four decimal...

For a rail network, it is possible to buy only single tickets from any station on the network to any other station on the network. Each ticket shows the name of the station at which the journey starts...

The digits and letters can repeat.

Hi! Just as a follow up question that I don't understand (and if someone could explain how this works) 1) There are 2 red and 4 green identical marbles arranged in a line. How many different arrangements...

Prove nCr = nCr-1

combinations in math for liberal arts, C(9,6)

Marc S.

Polymath tutoring math, science, and writing

Cambridge, MA

4.9
(659 ratings)

Brandon S.

Master Certified Coach: GMAT/GRE, ACT/SAT, ISEE/SSAT, English, Physics

Bloomfield Hills, MI

5.0
(1784 ratings)

Mary R.

Expertise and Motivation for Success

Fairport, NY

4.9
(223 ratings)