Answer:
45.6
There is a website with a calculator search up the question click the first link :)
Step-by-step explanation:
Total number of students =14+12
=26
Probability that a student is a girl
Answer:
The final cost is $207.65
Step-by-step explanation:
Regular price of the chair is $349
with 30% off,
(30/100)*$349 = 0.3*$349
= $104.70
actual cost is $349 - $104.70 = $244.30
For a customer using 15% off coupon
15% of actual cost
(15/100)*244.30 = 0.15*244.3
= $36.65
Final cost is $244.30 - $36.65
= $207. 65
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
Answer:
its blurry
Step-by-step explanation:
