Mathematics, 17.08.2019 19:10 kimlyn58p0wyn0
Atype of lightbulb is labeled as having an average lifetime of 1000 hours. it’s reasonable to model the probability of failure of these bulbs by an exponential density function with mean μ = 1000. use this model to find the probability that a bulb (i) fails within the first 200 hours, (ii) burns for more than 800 hours.
Answers: 3
Mathematics, 21.06.2019 18:00
Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?
Answers: 1
Mathematics, 21.06.2019 19:00
Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93
Answers: 2
Mathematics, 21.06.2019 20:30
Write an expression that represent sarah’s total pay last week.represent her hourly wage with w monday 5 tuesday 3 wednesday 0 noah hours wednesday 8 only with w wage did noah and sarah earn the same amount last week?
Answers: 3
Atype of lightbulb is labeled as having an average lifetime of 1000 hours. it’s reasonable to model...
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