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 Mar 28, 2020
 #1
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Credits to this article: https://math.stackexchange.com/questions/481376/upper-and-lower-bounds-in-rounding-to-1-decimal-place

 

1)

a)The upper bound would be 14.25 because anything less than that will round to 14.2.

If we round, that will get us the answer of 14.3

 

b) The upper bound will be 43.25, since that is the smallest number that will round up to 43.3. 

The answer is 43.25.

 Mar 28, 2020
 #2
avatar+1948 
+2

2)

a) The lower bound of 16.4 would be 16.349, since that is the smallest number that will round down to 16.3

The answer would be 16.349

 

b)The lower bound of 21.58 would be 21.549, since that is the smallest number that will round down to 21.5

The answer would be 21.549.

 Mar 28, 2020
 #3
avatar+1948 
+2

3) Area of rectangle: 87.3*51.8=4522.14

    Perimeter of rectangle:87.3*2+51.6*2=277.8

 

a)The upper bound of the area, 4522.14, would be 4522.15, since anything less than that will round to 4522.1.

The answer would be 4522.15.

 

b)The lower bound of the perimeter, 277.8, would be 277.849 since that is the smallest number than will round down to 277.8.

The answer is 277.849.

 Mar 28, 2020
 #4
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thank you

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