Answer:
∠B ≅ ∠Y △ABC ~ △ZYX by the SAS similarity theorem.
Step-by-step explanation:
1. 
units
units
units
units, then
2. 
and 
are right angles - given
3. 
two right angles are always congruent.
4. 
by SAS similarity theorem.
SAS Similarity Theorem states that if two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar.
Answer:
a 3x
no explanation k
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compare the divisor x-3 with x-a which will give a=3 and then use remainder theorem.
Answer:
I have made it in picture hope it helps
10512 is the answer since you just move the decimal place over to the right three times.
