Find, correct to the nearest degree, the three angles of the triangle with the given vertices. A(1, 0, −1), B(3, −5, 0), C(1, 4, 4)

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?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi