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Nataliya [291]
3 years ago
11

Round this number to two significant figures. 72.8 1. 72 2. 73 3. 73.0 4. 74

Mathematics
1 answer:
marishachu [46]3 years ago
8 0
The answer is 73 because 8 is more than 5 so it rounds up to be 73
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If D is the midpoint of the segment AC and C is the midpoint of segment DB , what is the length of the segment AB , if AC = 3 cm
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<span>A midpoint divides a line or a segment into two equal parts. If D is the midpoint of the segment AC and C is the midpoint of segment DB, what is the length of the segment AB, if AC = 3 cm.</span>

 

If D is the midpoint of AC, then AD=DC

If C is the midpoint of DB, then DC=CB

If AC=3cm. then then DC-3/2=1.5

If DC=1.5 then CB is 1.5 also

AB=AC+CB

AB=3+1.5

AB=4.5

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