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Step-by-step explanation:
Answer:
55/4 or 13.75 or 13 3/4
Step-by-step explanation:
it just is
Answer:
cm --- (a)
cm --- (c)
Step-by-step explanation:
Only (a) & (c) are clear enough to be solved. Others are not properly presented.
Use the following explanations of (a) & (c) to answer others.
Area is calculated as:
Substitute 100 for Area
Take π as 3.14. So, the expression become
Divide both sides by 3.14
Solve for r
But diameter = 2 * radius
So:
Area is calculated as:
Substitute 400 for Area
Divide both sides by 3.14
Solve for r
But diameter = 2 * radius
So:
With the sum of 99, we will get 50 pairs whole numbers. Why?
Let’s start with
0+ 99
1 + 98
2 + 97
3 + 96
4 + 95
5 + 94
6 + 93
7 + 92
8 + 91
9 + 90
10 + 89
………
……..
43 + 49
44 + 50
Therefore, if you’re going to count all pairs of whole number, you will get 50 pairs of whole number with the sum of 99.
Hope this helps!