If two triangles are similar, the correspondant sides are in proportion. So, the proportion is

Answer:
w=9
Step-by-step explanation:
I hope this image is helpful to you.
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-3b=-9. Plug in 3. -3(3)=-9.
Answer:
f(3) = 9
Step-by-step explanation:
In the given figure,
when x=3,
f(x)=9
substituting x=3 in f(x),
=> f(3)=9