Mathematics, 30.04.2021 17:20 pr47723
When Ryan runs the 400 meter dash, his finishing times are normally distributed
with a mean of 65 seconds and a standard deviation of 2 seconds. If Ryan were to run
36 practice trials of the 400 meter dash, how many of those trials would be between
62 and 65 seconds, to the nearest whole number?
Answers: 2
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 22:00
Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.
Answers: 1
When Ryan runs the 400 meter dash, his finishing times are normally distributed
with a mean of 65...
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