Answer:
1 hour and 53 minutes
Step-by-step explanation:
Your welcome
Let the equation be:
y = ax^2 + bx + c.
Then, substitue the three points into the equation.
First point: 0 = a0^2 + b0 + c.
So c = 0.
Second point: -2 = a(-1)^2 + b(-1) + c.
So a - b + c = -2.
Third point: 6 = a*1^2 + b*1 + c.
So a + b + c = 6.
We know that c=0 already, so we substitute c=0 into the last two equations and we would get:
a - b = -2
a + b = 6
We add the two equations and we get:
2a = 4
a = 2
Then, we substitute a=2 into a-b=-2 and we get:
-b = -4
b = 4
Now we know a = 2, b = 4, and c = 0
Then, the equation of the parabola would be:
2x^2 + 4x
I would have to say that i think the answer is D. hope this helps
Answer:
A tape diagram. StartFraction part Over whole EndFraction = StartFraction 300 Over 100 EndFraction = StartFraction 75
Step-by-step explanation:
The number of ways is 40320
<h3>How many ways could a group of 8 seated?</h3>
The group of people is given as:
Group = 8
The number of ways this group can be seated is calculated as:
Ways = Group !
So, we have
Ways = 8!
Expand
Ways = 8 * 7 * 6 * 5 * 4 * 3 *2 *1
Evaluate
Ways = 40320
Hence, the number of ways is 40320
Read more about factorial at:
brainly.com/question/22824482
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