Two forces act at right angles at a point on a body. one of the forces is 120 lb. and the other is 160 lb. find the resultant of the two forces.

Estimate the product. round the first factor to the nearest whole number, round the second factor to the nearest ten, and then multiply. 3 8/9 × 96

Long division the problem is 40 ➗ 348 = ?

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?