Answer:
26,987.5
Step-by-step explanation:
hope it's helpful to you ☺️

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The answer is D. Because it is easier to add 9 and 2 and also 8 and 1.
Answer:
my best bet is d
Step-by-step explanation:
tell me if im wrong
Answer:
See proof and explanation below.
Step-by-step explanation:
First we can proof this analitically first using the following property:

If we apply this into our formula we got:

And if we simplify we got:

And that complete the proof.
If we analyze the graphs sin(x) and cos (x) we see that we have a gap between two graphs of
as we can see on the figure attached.
When we do the transformation
we are moving to the left
units and then would be exactly the cos function.