Y= ax² -4x +3
-b/2a is x - coordinate of the vertex,
line of symmetry x=-2, x=-2 is a coordinate of the vertex also, because the line symmetry has vertex.
x= -b/2a
x= -2, b= -4
-2=-(-4)/2a
-2=4/2a
-2=2/a
a=2/(-2)=-1
a= - 1
Answer:
Explained below.
Step-by-step explanation:
A) A skewed distribution in a dataset is when the median is not equal to the mean in such a manner that the bell curve is tilted to the left or right.
B) If in a data set, there are outliers which are extremely large or extremely small in comparison to other values in that same dataset, then we can say that such a curve will be pulled towards the outlier and thus the distribution is skewed.
Also, if the curve is inclined to the left, it means there are few extreme values to the left and is is negatively skewed.
Similarly, if the curve is inclined to the right, it means there are few extreme values to the right and is positively skewed.
C) Example of a research question is;
If in a developed country where the poverty level is about 0%, if we collect the data of income of the households, we will discover majority of people with average income and very few people with extreme high levels of income. This condition means the data to is positively skewed.
The answer would be C
7/9 = 0.77777778
8x^3and 64y^3 is the equivalent to given equation
Answer:
<u>13</u> months attended the club.
Step-by-step explanation:
Given:
In order to join a dancing club there is a $30 startup fee and a $4 monthly fee. If you joined the club and spent $82.
Now, to find the months attend the club.
Startup fee = $30.
Monthly fee = $4.
Total money spent = $82.
So, we deduct the startup fee from the total money spent:
The remaining amount is $52.
Now, we divide the monthly fee by the remaining amount to get the months attended:
Therefore, 13 months attended the club.
