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Mathematics, 21.06.2019 23:20
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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Mathematics, 21.06.2019 23:30
Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?
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Mathematics, 22.06.2019 00:00
Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6
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Factor the gcf: β12x4y β 9x3y2 + 3x2y3...
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