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The formula for finding the height of an octagon from only one side is h=s(1 + the square root of 2). S is the length of one side. Your formula would be h=18(1 + the square root of 2).
h=18+18(the square root of 2)
h=18 + 25.4558
h=43.4558
Hope this helps!! :) And the decimal is rounded, just so you know ;). If your teacher likes everything in simplest radical form, then just don't convert the 18*the square root of 2 into a decimal and solve as you normally would.
Answer:
3n + 8 < 5n
n > 4
Step-by-step explanation:
Let
n = cost of viewing videos
Plan A: $3 per video viewed, plus a flat rate of $8 per month
Total cost for plan A = 3n + 8
Plan B: $5 per video viewed and no additional flat rate
Total cost for plan B = 5n
Plan A is less than the cost of viewing n videos using Plan B
The inequality
3n + 8 < 5n
8 < 5n - 3n
8 < 2n
8/2 < n
4 < n
n > 4
Answer:
The class width is 
Step-by-step explanation:
From the question we are told that
The upper class limits is 
The lower class limits is 
The number of classes is 
The class width is mathematically represented as

substituting values



Since