In a function, y varies inversely with x. the constant of variation is

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.