Mathematics, 28.07.2019 14:00 khan2491
1. the radioisotope iodine-123 is used in thyroid therapy. the half-life of this isotope is 13.27 hours. which equation determines the percent of an initial amount of the isotope remaining after t hours? a = 13.27 (1/2)^100/t a = 100 (1/2)^13.27/t a = 13.27 (1/2)^t/100 a = 100 (1/2)^t/13.27 2. a ladder leans against a building. the foot of the ladder is 2 feet from the building and reaches to a point 7 feet high on the building. what is the measure of the angle formed by the ladder and the building? enter your answer, rounded to the nearest degree, in the box.
Answers: 1
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1. the radioisotope iodine-123 is used in thyroid therapy. the half-life of this isotope is 13.27 ho...
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