Aclass has seven students . what is the probability that exactly four of the students were born on a weekday (monday through friday)?
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What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?