Answer:
-13n^4 + 11n^3 - 3n^2 - 3
Step-by-step explanation:
*I think you mistyped the question. I belive the 13n^4 is supposed to be negative*
1.First, we need to add common values (all the n^4s together, all the n^3s, etc.) from the two sets.
-13n^4
12n^3 + -n^3
8n^2 + -11n^2
-3
2. Now lets simplify
-13n^4
11n^3
-3n^2
-3
3. Laststly, we put them all into one expression!
-13n^4 + 11n^3 - 3n^2 - 3
Answer:
Vertical opposite angles are the same so the answer is D.
You didn’t show the figure
So, we know this:
<span> 5x+10y = 800
and we also know that the number of larger vehicles was 50.
So we can substitute:
</span>
<span>5x+10y = 800
</span>
<span>5x+10*50 = 800
and calculate:
</span><span>5x+500 = 800
and now subtract 500 from both sides:
5x=300
and divide by 5:
x=60.
and this is our answer: there were 60 smaller vehicles washed!
</span>
Answer:
. I I wish I could help. <em>Sorry</em>