Suppose the graph of the parent function y=cot(X) is vertically compressed to produce the graph of the function y=a cot(X), but there are no reflections. Which describes the value of a? a<-1

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

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 > ?