Answer:
7.5 if 1/5 is 15. if not, its 0.6
Step-by-step explanation:
<h2>Steps:</h2>
So for this, I will be factoring by grouping. Firstly, factor x³ + 2x² and -4x - 8 separately. Make sure that they have the same quantity inside of the parentheses:

Now we can rewrite it as:

However, we aren't finished factoring yet. The first factor, x² - 4, can be factored further using the difference of squares. The difference of squares goes by the formula here:
. In this case:

<h2>Answer:</h2>
<u>In short, the answer is
</u>
Answer:
steps below
Step-by-step explanation:
post here 16 and 17, should be able to do 18 and 19 yourself
16.
y=-8 for x≤-6
y=-1/4 x + 2 for -4≤x≤4
y=4 for x>4
17.
y=-x-4 for x<-3
y=x+1 for -3≤x≤1
y=-6 for x>4
180 - 130 = 50°
opposite sides add up to 180
Answer:9x
Step-by-step explanation: -9x + 9x = 0
If they add together to give zero then that is the additive inverse. So just change the sign