The answer is 2 in order to make the sentence true
From the given recurrence, it follows that

and so on down to the first term,

(Notice how the exponent on the 2 and the subscript of <em>a</em> in the first term add up to <em>n</em> + 1.)
Denote the remaining sum by <em>S</em> ; then

Multiply both sides by 2 :

Subtract 2<em>S</em> from <em>S</em> to get

So, we end up with

Answer:
B. translation, then reflection.
Step-by-step explanation:
translation means moving the shape without flipping or rotating it.
reflection means flipping it like in a mirror
Answer:
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