63 miles in 270 minutes, what is the average speed in miles per hour

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

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?