A train takes 8 hours to cover a distance of 1808 KM. How much distance does it cover in 1 hour? What is the operation?

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?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5