Find the angle between u = sqr5i-8j and v = sqr5i+j. round to the nearest tenth of a degree. (the square root is only on the 5i in both) a.65.9 b.98.5 c.90.4 d33.3

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

9/10 divide by -3/15 as a mixed number

Percent increase and decrease. original number: 45 new number: 18