F = 4
if f(x)=11, you must always try and get x alone, so f = (11+5)/4, and this simplifies to 4.
Because they are the same angle and both equal 90 degrees.
Confused a bit, can you make sure you copy and pasted it right?
Answer:
you again ask your family
Step-by-step explanation:
All you need to do is pull out the common factor of

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