Given that the graph of the quadratic function.
We need to determine the vertex of the graph and also determine whether it is a minimum or maximum value.
<u>Vertex:</u>
The vertex of the parabola is the point at which the parabola makes a turn to form a U - shaped graph.
Hence, from the figure, the parabola turns at the point (0,-2) to form a U - shaped graph.
Therefore, the vertex of the graph is (0,-2)
<u>Minimum or maximum value:</u>
When the parabola is open upwards, then the vertex is the lowest point on the graph which is the minimum value on the graph.
Thus, the graph has a minimum value.
Hence, the vertex of the graph is (0,-2); minimum value.
Therefore, Option A is the correct answer.
Answer:
yea I don't understand either kid, it's upside down.
Step-by-step explanation:
Answer:
Step-by-step explanation:
For this case we can calculate all the questions with the following table:
Class Midpoint(Xi) fi Xi*fi Xi^2 *fi
____________________________________
0-3 1.5 6 9 13.5
3-6 4.5 6 27 121.5
6-9 7.5 11 82.5 618.75
9-12 10.5 21 220.5 2315.25
12-25 18.5 5 18 1711.25
_____________________________________
Total 49 431.5 4780.25
We can calculate the expected value with the following formula:
And if we replace we got:
We can calculate the sample variance with the following formula:
And replacing we got:
And the deviation would be just the square root of the variance like this:
Answer:
$56.25
Step-by-step explanation:
Not sure if I can explain this too well but
This question is basically asking what 25% of 75 is
To find that you would multiply 75 x 0.25:
75x0.25=18.75
Now we know that the question is saying that we can take $18.75 off the original total($75) to find the discount total
So we would simply subtract $75 by $18.75 to find the final price:
75-18.75=56.25
So our total is equal to $56.25
6xy. That’s the answer because you have to multiply 3 times 2 and then put ex and Y after
