С ABC and AED are straight lines.
BE and CD are parallel.
В.
AC = 12.3 cm
AB = 8.2 cm
BE = 3.8 cm
a) Work out length CD.
А
E
D
AD = 9.15 cm
b) Work out length ED.

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  a)  CD = 5.7

  b)  ED = 3.05

Step-by-step explanation:

Triangle ABE is similar to triangle ACD by AA similarity. This means we can write the proportions ...

a) CD/BE = AC/AB

  CD = BE(AC/AB) = 3.8(12.3/8.2)

  CD = 5.7

__

b) ED/AD = BC/AC

  ED = AD((AC -AB)/AC) = 9.15(12.3 -8.2)/12.3

  ED = 3.05

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

i think it’s c i believe