4 + i<span>
-2 + 2i
</span><span>-1 − 3i
</span><span>3 − 4i</span>
Answer:
C
Step-by-step explanation:
Since BC is parallel to DF and intersects the other 2 sides then it divides those sides in proportion, that is
= , substitute values
= ( cross- multiply )
5(5x - 4) = 3(4x + 2) ← distribute parenthesis on both sides )
25x - 20 = 12x + 6 ( subtract 12x from both sides )
13x - 20 = 6 ( add 20 to both sides )
13x = 26 ( divide both sides by 2 )
x = 2
Thus
DE = 5x - 4 + 3 = 5(2) - 1 = 10 - 1 = 9
EF = 5 + 4x + 2 = 5 + 4(2) + 2 = 5 + 8 + 2 = 15
Answer:
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