N+10=100 n+10-10=100-10
1 answer:
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The four books had an average of 341 pages
Step-by-step explanation:
Given
Total number of books = 4
Pages in first book = x1 = 326
Pages in second book = x2 = 288
Pages in third book = x3 = 349
Pages in fourth book = 401
The average is given by:
The four books had an average of 341 pages
Keywords: Average, Division
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Answer:
Step-by-step explanation:
volume = area of base * height = area of base * 9 = 72
-> area of base = 72/9 = 8
let a,b,c be the length of sides of isosceles right triangle base
we have a = b and a*b/2 = 8 ft2
-> a*a/2 = 8ft2
-> a*a = 16
-> a=4ft=b
have c^2 = a^2 + b^2 = 16 +16 = 32
-> c = = 5.656 ft
Since i dont know that is DF, i calculate both a,b and c
