g Train Tracks are made of metal. They expand when it is warm and shrink when it is cold. When riding on a train you hear the clickety-clack of the wheels going over small gaps left in the tracks to allow for expansion. Suppose someone lay the track and forgot to put in the gaps so that the track is 1 mile long and firmly fixed at each end. On a hot day, suppose the track expanded by a total of 2 feet and therefor buckled in the middle creating a triangle. How high would the midpoint be

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0