Mathematics, 19.10.2019 02:10 madelyngv97
The comprehensive strength of concrete is normally distributed with μ = 2500 psi and σ = 50 psi. find the probability that a random sample of n = 5 specimens will have a sample mean diameter that falls in the interval from 2499 psi to 2510 psi.
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Mathematics, 21.06.2019 16:30
Ineed ! the person who answers and shows their work on they got the answer first will be marked the !
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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 0 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 20:30
Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.
Answers: 1
The comprehensive strength of concrete is normally distributed with μ = 2500 psi and σ = 50 psi. fin...
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