Answer:
8
Step-by-step explanation:
The equation of the parabola can be represented as

for some constant a.
Since the coefficient of x² is 2, a = 2, so

So, the answer is 8.
Answer:
9 is an rational number because it is a whole number
Step-by-step explanation:
Answer:
mini disc diameter:disc diameter
14cm:21cm = 7:10.5 = 3.5:5.25 = 1:1.5
Y because if you add them you will get 10x =-10
The y will be eliminated because you have positive 3 -4
I got 7.64 because you round the 3 to 4 since the 7, in the 3rd decimal place is higher than 5