Learning Materials
Features
Discover
Chapter 12: Q9. (page 634)
A bookshelf holds 4 different biographies and 5 different mystery novels. How many ways can one book of each type be selected?
D) There are 20 waysone book of each type can be selected.
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
How many different 5-digit codes are possible using the keypad shown at the right if the first digit cannot be 0 and no digit may be used more than once?
Evaluate each expression.
How many ways can a hand of five cards consisting of four cards from one suit and one card from another suit be drawn from a standard deck of cards?
State whether the events are independent or dependent.
Choosing a president, vice president, secretary, and treasurer for Student Council, assuming that a person can hold only one office.
Write an equation in slope-intercept form for each graph.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
Explanations 
Textbooks 
Exams 
GCSE 
IGCSE 
AS 
A Level 
International A Level 
University Admissions Tests 
Flashcards 
Vaia AI 
Notes 
Study Plans 
Study Sets 
Find a job 
Find a degree 
Student Deals 
Magazine 
Mobile App