Based on the data in this two-way table, if a flower is picked at random, what is the probability that it's a pink rose? type of flower/color red pink yellow total rose 40 20 45 105 hibiscus 80 40 90 210 total 120 60 135 315 0.063 0.126 0.190 0.333

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

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 > ?

The product of 3 and a number increased by 8 is 31