Sarabeth is selling bracelets as a fundraiser for the school library. each bracelet with blue beads sells for $4.50. each bracelet with red beads sells for $5. she raised a total of $130 for the library. the number of bracelets with red beads (r) that sarabeth sold is 3 less than twice the number of bracelets with blue beads (b) sold. if the table is used to guess and check, what equation should go in the top of the third column?

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 bsuppose 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 cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?