The variables x and y have a proportional relationship: when x is 4, y is 11. What is the constant of proportionality for this relationship?

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Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

X+ y = 5 ; x - y =3 solve using linear combination