Write an equivalent expression for 7 + 5 k minus 2 minus 3 k + n. Which statements are true about the steps for writing the equivalent expression? Check all that apply. -Combine the constant terms by adding 7 and –2.

-The equivalent expression is 9 + 3 k.

-n, 5 k, and negative 3 k are like variable terms.

-Combine the like variable terms by adding the coefficients.

-5 k and negative 3 k are like variable terms.

-The constants 7 and –2 are like terms.

-The equivalent expression is 5 + 2 k + n.

-Combine the constant terms by adding 7 and 2.

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 > ?