Let |u| = 4 at an angle of 210° and |v| = 9 at an angle of 315°, and w = u – v. What is the magnitude and direction angle of w? |w| = 5.5; θ = 156.1°
|w| = 5.5; θ = 203.9°
|w| = 10.8; θ = 156.1°
|w| = 10.8; θ = 203.9°

What statement is true? 2x^2-9x+2=-1

How is working backward similar to solving an equation?

Acompany that manufactures and sells guitars made changes in their product range. from the start they had 20 models. then they reduced the number of models to 15. as a result, the company enjoyed a 10% increase in turnover. - how much did the stock level change? in (%)