A train moves at a constant speed. The train travels 15 miles in 1/5 hour. What is the train's speed? *
55 mph
65 mph
75 mph
85 mph

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Select the correct answer from the drop-down menu. this graph represents the inequality x+2< 4,2x> 3,x+6< 12,2x> 12

How does the graph of y = 3x compare to the graph of y = 3-x?