Find the lengths of DE and EF. Note: Segments BC and DF are parallel
2 answers:
Answer:
C
Step-by-step explanation:
Given that Segments BC and DF are parallel, then the following proportion must be satisfied:
BE/EC = DE/EF
Replacing with data from the picture:
3/5 = (5x - 4 + 3)/(5 + 4x + 2)
3*(7 + 4x) = (5x - 1)*5
21 + 12x = 25x - 5
21 + 5 = 25x - 12x
26 = 13x
x = 2
Then,
DE = 5x - 4 + 3 = 5(2) - 4 + 3 = 9 cm
EF = 5 + 4x + 2 = 5 + 4(2) + 2 = 15 cm
Answer:
the answer is c
Step-by-step explanation:
you have to create a proportion ( it being 5x-4/3=4x+2/5) then after you cross multiply from that proportion you plug in x. and don't forget to add the other part of the triangle as well.
You might be interested in
Answer:
None
Step-by-step explanation:
None. √-21 is not a real number.
Answer:
Step-by-step explanation:
Good luck
Answer:
the awnser should have is. b
90 round to the nearest hundredth
Answer:
To divide 0.8 divided by 20 she needs to annex a 0 in the hundredths place. So, the quotient is 0.04, and Carly is correct
