Sec theta/2 = cos theta/2
find all solutions of the equation; find solutions in the interval [0, 2pie)

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

Find the slope of the line passing through a pair of points