Can someone help me with these two I need help dearly .
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Mathematics, 21.06.2019 19:30
Identify the number as a rational or irrational.explain. 127
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Mathematics, 21.06.2019 19:30
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
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Mathematics, 21.06.2019 21:00
What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3
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