"h and k cannot both equal zero" -- yes, it can. if the vertex of a parabola is at (0, 0), there's nothing incorrect/invalid about that!!
"k and c have the same value" -- k and c do not have the same value. "k" is the y-value of the vertex and c is the constant in your quadratic equation, and the constant is not necessarily the y-value.
"the value of a remains the same" -- this is true. the a's in your equations are the same values, because the a-value is the coefficient of the x-variable in both equations. y = a(x - h)^2 and y = ax^2 -- both of these have a applying to your x-variables.
"h is equal to one half -b" -- this isn't true. the formula for calculating the x value of the vertex (h is the x-value of the vertex) is h = (-b/2a). -b/2a is not the same as one half -b because this answer choice doesn't involve the a-value.
Answer:
Step-by-step explanation:
The formula:
Substitute:
answer
yes
explination
I would say that yes, they do. The concepts are being described like normal, confidence, and random. Those are describing the statistical concept the sentence is placed around. Think of this...
Day => Normal
that makes sense... and it's describing the day so it helps you understand that the day is like every other...
Winning => "little" confidence
This one kind of helps describe it if you add in little... This helps you understand that the person speaking in this sentence probably isn't so sure about how the game is going to turn out...
...??? => random
The thing that was mentioned before hand what probably off topic of what those particular people were talking about... so it was random... It helps you understand that the topic that was just mentioned before this was probably off base of the topic that was previously being discussed....
I do not know if these are right. This is just what I think. I would wait for a another person's answer/comment to compare to before you really kind of take my thoughts/answer seriously. :) I hope this helps!
45
360 = 90+6x
270 = 6x
x = 45
The answer is is 4.2 because the 2 rounds up to 3 and the 3 does not round up the four so four does not round up the 2 so it is 4.2