What value of y makes
the equation below true?
y + 2.9 = 11
a 8.1
b 8.9
c 9.1
d 13.9

The answer would be A

That is because you can not add unlike terms, so you would have to subtract 2.9 - 11 to find your answer. Therefore, the answer is 8.1

Hope you found this useful.

Answer is “A”

Because since we know if we need to find the y is so we need to subtract 11-2.9=8.1

which mean y mean 8.1

You can use the useful mnemonic: SOH CAH TOA to determine what function to use. Since  we have information about the hypotenuse (H) and opposite (O), we should use sine (S) for "SOH".

So yes, sine would be correct.

Hope this helps!