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Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200
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Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g
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Where would an imaginary line need to be drawn to reflect across an axis of symmetry so that a regular pentagon can carry onto itself
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