Select all the correct answers. Which equations represent functions?
2 answers:
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To find this answer, we need to multiply 3.57 by 12.
Therefore, 12 planks will cost $42.84.
Therefore, 12 planks will cost $42.84.
We have:
Then we use trigonometric identities to change the negative sign of the trigonometric functions, so:
We clear f(x):
we simply what we can:
Thus, the correct answer is;