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Answer:
Check explanation
Step-by-step explanation:
Here, we want to make a prove;
Mathematically , since D is the midpoint of CE
Then;
CE = CD + DE
Also, since D splits the line segment into two equal parts as the midpoint, then CD must be equal to DE
I.e CD = DE
Hence, we can express CE as follows;
CE = DE + DE
CE = 2 DE
Divide both sides by 2
CE/2 = DE
Hence; DE = 1/2 CE
Answer:
20700 feet per hour
Explanation:
Convert 345 feet per minute to 345 feet per hour.
First find how many minutes are in an hour:
60 minutes = 1 hour.
1 minute • 60 = 1 hour
345 feet • 60 = 20700 feet per hour.
The given expression is
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And in the second factor, x is common. So on taking x out, we will get
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We can expand it by distributing , that is
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Combining like terms,
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And that's the expanded form ., and the given expression can also be written in that way .