In the right angle shown m angleA= 45 degrees and AB=12. How long is BC? A) Radical 6
B) 6
C) 6 radical 2
D) 12
E) 12 radical 2

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step-by-step explanation:

idk

i hope i

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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