Mathematics, 29.04.2021 04:40 jdisalle7486
10.2.73
A mirror is shaped like a paraboloid of revolution and will be used to concentrate the rays of the sun at its focus, creating a heat source. If the
mirror is 38 feet across at its opening and is 15 feet deep, where will the heat source be concentrated?
Answers: 3
Mathematics, 21.06.2019 15:30
What is the value of x? enter your answer in the box. photo attached.
Answers: 2
Mathematics, 21.06.2019 16:00
If f(x)= 3x+6 which of the following is the inverse of f(x)
Answers: 2
Mathematics, 21.06.2019 19:30
In the geometric progression –3, 12, −48… what term is 3,072?
Answers: 2
Mathematics, 21.06.2019 19:40
It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
Answers: 1
10.2.73
A mirror is shaped like a paraboloid of revolution and will be used to concentrate the ray...
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