I need help on this problem please!! NO LINKS Convert the polar equation to rectangular coordinates. (Use variables x and y as needed.)​

The only way to identify an intercept is as an ordered pair. true false

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.