Answer:
4(9a^4+4y^2)
Step-by-step explanation:
factor out common term
We need the figure to answer that.
Answer:
Always
Step-by-step explanation:
An acute angle is an angle that is less than 90. Supplementary angles add up to 180.
So 180-89= 91
An obtuse angle is any angle that is greater than 90.
Here's a link to a better explanation.
brainly.com/question/14180317
