What are the missing angle measures in triangle abc?
1.4° and 88.6°
18.6° and 71.4°
35.5° and 54.5°
44.4° and 45.6°

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?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8