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lesson: Combinations

1. A box contains 8 blue balls, 6 white balls, and 4 black balls. Determine the number of ways we can select 4 balls such that:

a. They are all blue

b. The are all white

c. They are all black

d. Two of them are blue, one is white, and one is black

e. Exactly 1 of them is black

f. None of them is blue

2. A box with 12 bulbs contains one that is busted. Determine the number of ways you can select 7 bulbs such that:

a. The busted bulb is included

b. The busted bulb is not included

3. In how many ways can a committee of eight, consisting of a Chairman, a Vice-President, a Secretary, and 5 other members, can be choses from a group of 15 people?



please help



Sagot :

Answer! <3

1. D.

2. B.

3. WE CAN VOTE WISELY IN WHO WILL BE THE PRESIDENT, VP, SECRETARY ETC..

Step-by-step explanation:

THATS ALL PO HOPE I HELP YOU! <3

#CARRYONLEARNING

#BETTERINBRAINLY

Step-by-step explanation:

hmm isip Pako ha wait ka hirap ehhh