<h3><u>Given Numbers:-</u></h3>
- 23, 33 ,33 ,27 ,25 ,68 ,27 ,44 ,72
<h3><u>To Find:-</u></h3>
- average of this set of numbers
<h3><u>Solution</u>:-</h3>

Here, no of observation are 9
Now,





The Average of given set of numbers is 39.1 .
∴ Option C) is correct ✔️
1) We can determine by the table of values whether a function is a quadratic one by considering this example:
x | y 1st difference 2nd difference
0 0 3 -0 = 3 7-3 = 4
1 3 10 -3 = 7 11 -7 = 4
2 10 21 -10 =11 15 -11 = 4
3 21 36-21 = 15 19-5 = 4
4 36 55-36= 19
5 55
2) Let's subtract the values of y this way:
3 -0 = 3
10 -3 = 7
21 -10 = 11
36 -21 = 15
55 -36 = 19
Now let's subtract the differences we've just found:
7 -3 = 4
11-7 = 4
15-11 = 4
19-15 = 4
So, if the "second difference" is constant (same result) then it means we have a quadratic function just by analyzing the table.
3) Hence, we can determine if this is a quadratic relation calculating the second difference of the y-values if the second difference yields the same value. The graph must be a parabola and the highest coefficient must be 2
She would need to put 1 3/4 more cups in.
Answer:

Step-by-step explanation:
Given

Required
State the formula
From trigonometry identity, the formula of
is:
