A chain 10 feet long weighs 6 pounds per foot and is hung from a platform 40 feet above the ground. How much work (in ft-lb) is required to raise the entire chain to the 40-foot level

Which of the following parabolas opens down?

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

The seventh-grade students at charleston middle school are choosing one girl and one boy for student council. their choices for girls are michaela (m), candice (c), and raven (r), and for boys, neil (n), barney (b), and ted (t). the sample space for the combined selection is represented in the table. complete the table and the sentence beneath it.