![Mordred4987](/avatars/48383.jpg)
Mordred4987
05.02.2020 •
Mathematics
How many ways can you purchase 5 cds if there are 6 to choose from, 2 cassettes if there are 5 to choose from, and 4 dvds if there are 8 to choose from?
Solved
Show answers
More tips
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Mathematics
- M Mathematics Please answer this you don’t have to use a graphic cal ur choice...
- S Social Studies С Researching known information is an important process of developing a research question. Please select the best answer from the choices provided от OF Mark this and return...
- M Mathematics Find cosine sin and tangent of a= -3pi/6...
- H History What were the fundamental causes of growing conflict between America and Britain over origin and between the North and the South over the annexation of Texas...
Ответ:
In this case, this problem is a combination problem. The equation for this is:
Number of ways = n!/r!(n-r)!, where you choose 'r' things out of 'n' objects. Applying this equation, the solution would be:
5 CD's out of 6:
Number of ways = 6!/5!(6-5)! = 6 ways
2 Cassettes out of 5:
Number of ways = 5!/2!(5-2)! = 10 ways
4 DVDs out of 8
Number of ways = 8!/4!(8-4)! = 70 ways
Ответ:
x= 42.3
Step-by-step explanation:
Sqrt a^2 + b^2 - (2ab)(cos 100)
Sqrt 25^2 + 30^2 - (2)(25)(30)(cos 100)
42.3