List some of the valid reasons that can be used in a proof:
2 answers:
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Answer:
The answer to your question is letter A (2/3)
Step-by-step explanation:
Formula
tangent Ф =
For A
opposite side = 2
adjacent side = 3
Substitution
tan Ф =
Result
tan Ф =
To make a square for x²+bx=c, add( 
)²on both side
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side.
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side.