Suppose an economy has three sectors: Mining, Services and Tourism. Mining sells 20% of its output to Services and (D + 35)% to Tourism, and retains the rest.
Services sells 32% of its output to Mining and (D + 10)% to Tourism, and retains
the rest. Tourism sells (D+25)% of its output to Mining and 35% to Services, and
retains the rest. Determine the exchange table for this economy, where the columns
describe how the output of each sector is exchanged among the three sectors. Also
write a linear system to represent income and expenditure. Do not solve the system.

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 > ?