Extra Credit: An older method of estimating body fat percentage was to measure a person's average density (total mass divided by total volume), and apply a formula to convert a body fat percentage. Formula: BF = (4.57/p - 4.142)x100 (where BF = body fat and p = density in g/cm³. A man weighs 260 pounds. His total body volume is measured by a cylinder with a height of 180 cm and a radius of 14 cm. Find his body fat percentage, based upon the given formula (to the nearest percent).

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?