Solve the problem.Ron finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them. In how many ways can he select 5 of the books to buy? How many ways can he make his selection if he decides that one of the books is a must?
A. 126; 70
B. 3024; 1680
C. 15,120; 1680
D. 7560; 840
Answer: A
Mathematics
You might also like to view...
Perform the indicated operation and express in lowest terms.
÷ 
A. - 
B. 1
C. 
D. - 
Mathematics
Check the following addition. If the answer is incorrect, give the correct answer.
1736
A. Incorrect; should be 1836 B. Correct C. Incorrect; should be 1734 D. Incorrect; should be 1738
Mathematics
Sketch the graph of the function and its inverse on the same coordinate axes.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Simplify.
2 
A. 0
B. 
C. 
D. 
Mathematics