If it’s a triangle I’m going to assume it’s 70 degrees
We can solve this equation by completing the square. Notice that

and

. Therefore, we can turn

into

. y, in this equation, only has one real solution: 4. So your answer would be (B).
...it’s 0.21 because 21% is 21/100 which makes it 0.21
Answer:
Step-by-step explanation:
N is 3 bc #of terms minus 1
Exponents go from 3>2>x>none
Can be factored using binomial theorem
The answer is b, since that's the only other function there that involves using absolute value