In triangle ABC segment DE is parallel to the side AC. (The endpoints of segment DE lie on the sides AB and BC respectively).
1 answer:
Answer:
6 dm
Step-by-step explanation:
Triangle DBE is similar to triangle ABC, so their side lengths are proportional.
DE/AC = DB/AB
The length of DB can be found from ...
DB +AD = AB
DB = AB -AD = (15 -10) dm = 5 dm
So, we can fill in the proportion:
DE/(18 dm) = (5 dm)/(15 dm)
DE = (18 dm)·(1/3) . . . . . . . . . . simplify, multiply by 18 dm
DE = 6 dm
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Answer:
The value of given expression for x = - 10 is - 81
Step-by-step explanation:
Given expression as :
3 x - 2
Or, 3 + x - 2 -
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or,
Now for x = - 10
Or,
∴ - 76 - 5
Or, - 81
Hence The value of given expression for x = - 10 is - 81 Answer