3) An airliner has altitude h. Also, let t be time. If the rate of change of the airliner's altitude with
Ah
ft
respect to time is
-=-1500- how long
At
min
does it take the airliner to descend from
h = 32,000 ft to ground level (h = 0)?
A) 17.79 min
B) 18.60 min
C) 19.51 min
D) 20.42 min
E) 21.33 min

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

correct answer is b. 27/8

step-by-step explanation:

answer: the resulting cross section is a rectangle. solution: a plane parallel to the base of a triangular prism will intersect a cross section that is the same shape as its bases. so the cross section is a triangle.

step-by-step explanation: