Mathematics, 09.04.2020 22:14 ssummey2004
In her science fair project about the amount of water needed to dissolve 2 ml of a certain substance at room temperature,
Staci got an average value of 32 ml.
What should Staci do for the best chance to reproduce that data again?
improve the experimental design
change it to include a control group
follow the same steps exactly
decrease the number of trials
Answers: 2
Mathematics, 21.06.2019 19:20
Math each whole number with a rational,exponential expression
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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)
Answers: 3
Mathematics, 21.06.2019 22:40
The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?
Answers: 1
Mathematics, 21.06.2019 23:20
This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3
Answers: 1
In her science fair project about the amount of water needed to dissolve 2 ml of a certain substance...
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