3 years ago

Can anyone help me out with proofs ? If B is midpoint of AC and D is the midpoint of CE prove BD is parallel AE.

Mathematics

2 answers:

Luden [163]3 years ago

7 0

Could you include a picture of the question and diagram

bearhunter [10]3 years ago

5 0

Um I don’t really know

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On a number line, A is at negative 7 and B is at 3. What is the coordinate of C, which is two fifths of the way from A to B?

svetoff [14.1K]

well, 2/5 of the distance AB is simply their product, thus 2/5 of AB is just (2/5)AB.

$\bf \stackrel{A}{-7}\stackrel{\textit{7 units}}{\rule[0.35em]{17em}{0.25pt}}0\stackrel{\textit{3 units}}{\rule[0.35em]{10em}{0.25pt}}\stackrel{B}{3}
\\\\\\
AB=7+3\implies AB=10~\hspace{7em}\cfrac{2}{5}AB\implies \cfrac{2}{5}(10)\implies 4
\\\\\\
-7\rule[0.35em]{2em}{0.25pt}-6\rule[0.35em]{2em}{0.25pt}-5\rule[0.35em]{2em}{0.25pt}-4\rule[0.35em]{2em}{0.25pt}\boxed{-3}$