How many different odd numbers of 4 digits can be formed with the digits 1,2,3,4,5,6,7 ; the digits in any number being all different

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?