TRiangles ABE and ACD are similar because BE and CD are parallel.
Therefore CD / BE = AD / AE
8 / BE = 16 / 10
BE = 8*10 / 16 = 5
Also, 16 / 10 = AC / AB = 20 / AB
AB = 10 * 20 / 16 = 12,5
Perimeter of ABE = 5 + 10 + 12.5
= 27.5 units (answer)
G(x)=-5x-1
Change g(x) to y.
y=-5x-1
Switch x and y.
x=-5y-1
Solve for y.
x+1=-5y
Divide by -5.
(x+1)/-5=y
(x+1)/-5=y is your answer.
2(x+4) = 1/2(4x-4)
Multiply through by 2:-
4(x + 4) = 4x - 4
4x + 16 = 4x - 4
4x - 4x = -4 - 16
0 = -20
This is obviously wrong so there is NO Solution (answer).
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Answer:
Rays only have one endpoint
