Mathematics, 24.12.2021 19:00 biancasamadp3usfw
A particle moves along a straight line. For 0 ≤ t ≤ 5, the position of the particle is given by –. a) What is the average velocity of the particle over the interval 0 ≤ t ≤ ? b) Find a general expression for the velocity of the particle as a function of time, v(t), and determine the value of v at t = 2. Is the particle traveling to the left or the right at this point? Justify your answer. c) Find all times t during the interval 0 ≤ t ≤ 5 that the particle changes direction. Justify your answer. d) At t = 4, is the speed of the particle increasing or decreasing? Justify your answer.
Answers: 2
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If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52
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Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
Answers: 1
A particle moves along a straight line. For 0 ≤ t ≤ 5, the position of the particle is given by –. a...
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