If you meant "8 4/5," then that's "a mixed number."
Otherwise, both 8 and 4/5 are real numbers, and both are rationale.
Please be clearer about what you need to learn here.
Answer:
12
Step-by-step explanation:
We are finding the discriminant
b^2 -4ac
2x^2 - 2x - 1 = 0
a =2 b = -2 c = -1
(-2)^2 - 4(2)(-1)
4 +8
12
<span>c=2*pi*r
2r=d
so
c=pi*d
</span>I hope this clarifies everything.
I believe that the answer will equal to B
$6.78 because you can just add the costs of the items