Hey there Smarty!
This would be considered to be a (acute angel) which in this case, we would have to make sure that this whole triangle would equal less than 270 because each angle would be less than

°
If we add/multiply

.
So, we would have to know that was ever this would all add up to be, this would have to be less than 270°
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I truly hope this helps, and also, it's kind of my
first time doing this I hope this would be helpful.
~Jurgen
Answer:
"You could add each number one by one in your head, and the total is your answer."
Answer:


Step-by-step explanation:
For an equation of the form 
The quadratic formula is

In this case the equation is:

Then

Therefore, using the quadratic formula we have:




Answer:
0.25 Converges
Step-by-step explanation:
First, we need to expand our series so that we get the following:

We can then use the series ratio test on each term. (L < 1 = absolutely convergent)

=
⇒ converges


⇒ converges
converges + converges
= converges
~Hope this helps! Once again, sorry if my explanation is a bit confusing~