Plzz helpp I’ll mark brainiest
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Mathematics, 21.06.2019 14:10
Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?
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Mathematics, 21.06.2019 14:30
In the image, point a marks the center of the circle. which two lengths must form a ratio of 1 : 2? (options are in the images since thought they were harmful phrases)
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Mathematics, 21.06.2019 14:30
What is the order of operations for 2 + (3 - 9) ÷ -3 · 4 in number order 1. subtraction 2. division 3. addition 4. multiplication
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