Two girls used the same number of beads to make a necklace. farah used 2/5 of hers and rani used 1/4 of hers. they had a total of 260 beads at first. how many beads did each girl use?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?