Mathematics, 07.03.2020 04:36 taylorbuck47
The probability density function of the time you arrive at a terminal (in minutes after 8:00 a. m.) is f left-parenthesis x right-parenthesis equals StartStartFraction e Superscript negative StartFraction x Over 16EndFraction Baseline OverOver 16EndEndFraction for 0 less-than x . Determine the following probabilities.
a) You arrive by 9:00 A. M.
b) You arrive between 8:15 A. M. and 8:30 A. M.
c) You arrive before 8:10 A. M. on two or more days of five days. Assume that your arrival times on different days are independent.
Answers: 3
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 21:30
Joe has a rectangular chicken coop. the length of the coop is 4 feet less than twice the width. the area of the chicken coop is 510 square feet. what is the length of the chicken coup?
Answers: 3
Mathematics, 22.06.2019 01:30
20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.
Answers: 2
The probability density function of the time you arrive at a terminal (in minutes after 8:00 a. m.)...
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