Mathematics, 21.10.2021 14:00 chycooper101
2. Many electronic devices use disposable batteries, which event
ally have to be replaced. Assume that for one particular brand
and type of battery, the distribution of the hours of useful power
can be approximated well by a Normal model. The mean is
140 hours, and the standard deviation is 4 hours.
L
c) The company's research department has been given the tax
of improving the batteries, with a goal that at least 90% of
the new batteries should last longer than the average of the
current type. Initial research suggests that a mean of
143 hours is attainable. What other improvement must they
make to achieve their goal?
d) Explain what the improvement you suggest in partc would
mean about the new batteries.
Answers: 2
Mathematics, 21.06.2019 15:00
The lee family bought their home for $220,000 this year. the equation =220,000(1.038) v = 220 , 000 ( 1 . 038 ) x can be used to find the value, v, of their home after x years. which will be the value of the lee family's home in 5 years?
Answers: 1
Mathematics, 21.06.2019 22:00
Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point
Answers: 1
Mathematics, 21.06.2019 22:00
Sara has been reading about different types of financial grants, including federal pell grants, academic competitiveness grants, smart grants, and teach grants. which statement about these grants is true? filling out a fafsa will not her apply for these grants. she will not have to pay back any funds she receives from these grants. these grants only go to students with less than a 3.0 gpa. she will have to pay back all the funds she receives from these grants.
Answers: 2
2. Many electronic devices use disposable batteries, which event
ally have to be replaced. Assume...
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