Answer:
Quintic Trinomial (2nd option)
Step-by-step explanation:
We know that this is a quintic polynomial because the degrees add up to 5. If we expand the polynomial, we have 
So, there are 3 terms, which is a trinomial.
Answer:
-8
Step-by-step explanation:
47-55=-8
Answer:
It's D. 9y³
Step-by-step explanation:
If the discrimination is equal to 0, there is one real solution
A)
y= total charges
x=number of mattresses
Company A: y=$30x+13 Company B: y=$28x+15
B)
plug x=4 into both equations to get
A: y=30(4)+13=$133
B: y=28(4)+15=$127
Company B charges less because 127<133
C)
Plug in 7 for x
A: y=30(7)+13=$223
B: y=28(7)+15=$211
A-B=223-211
=$12 Saved
