Mathematics, 26.02.2021 17:30 lilGi0
during a series of 100 meter races, the times of the runners are normally distributed with a mean of 12.5 and a standard deviation of 0.3 seconds. find the percent of runners that have a time between 11.6 seconds and 12.8 seconds
Answers: 3
Mathematics, 21.06.2019 18:30
Can someone check if i did this correct. it’s number 4 if you’re wondering.
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 20:10
Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12
Answers: 1
Mathematics, 21.06.2019 20:50
Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?
Answers: 3
during a series of 100 meter races, the times of the runners are normally distributed with a mean of...
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