Two freight trains leave at the same time from the same station. The angle between the two tracks on which they leave is 110°. One travels at an average speed of 30 mph and the other at
an average speed of 40 mph. How far apart are they (in miles) after 30 minutes?

Anyone know? is appreciated! will mark brainliest if correct!

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

How to do this , and can some one explain