Which of the following methods can be used to construct a pattern of 10 numbers for which it would be mathematically impossible to predict the 11th term?
check all that apply.

a. make a pattern from winning lottery tickets.
b. make a pattern, starting with 2, where each number is the next digit of e(2.
c. make a pattern where each number is the square of the number before it, plus 7 times the cube of the number before that.
d. make a pattern by counting the number of letters in each word of lincoln's gettysburg address, starting with the first word.
e. make a pattern by asking each of 10 friends what their favorite number is.

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 > ?