An author collected sample data by randomly selecting 30 pages from a dictionary and then counted the number of defined words on each of the 30 pages. Which type of sampling method did the author use

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13