First we need to identify if the data is qualitative or quantitative.
The data is average number of people living in the homes.
Qualitative data as its name indicates is an attribute or characteristic. It can not be measured e.g color. Quantitative data is such a data which can be counted or measured.
Since the average number of people can be counted and measured, the data is Quantitative.
In an observational study the individuals are observed. In the given case, Kira did not observed the individuals to gather the data, rather she used an Online resource to gather the data.
Therefore, the correct answer will be:
Kira used published data that is quantitative.
Answer:
So 60% of this unknown number is 28
Let this unknown number be n
60/100 × n = 28
0.60 × n = 28
n = 28/0.6
n = 46.7
To the nearest wholw number is 47
So there are 47 votes in total
Answer:
the cost of the women's haircut is $15 and to shampoo the woman's hair is $5
and the cost of the mens hair cut is $7 and to shampoo the mens hair is $2
15+5=$20 is how much it cost for the women.
7+2=$9 is how much it cost for the men.
Step-by-step explanation:
The function is graphed as shown below
Part A:
We use the formula
to find the vertex of the function. A quadratic function of the form of
and equating this form to the given function
, we have
and
.
Substituting
and
into the vertex formula, we have
, as shown in the graph
This calculation means that the highest profit is achieved when the number of photo printed equals to ten photos
Part B:
We can find solution to this equation by factorising
and
, as shown in the graph
The two values means that the company makes no profit when they either produce 5 or 15 photos
To find slope, we must find the change in y values divided by the change in x values, also called the rise/run. This is modeled below:
Slope = m = (y1 - y2)/(x1-x2) = (6-(-3))/(1 - (-6)) = (6+3)/(1+6) = 9/7
We can check that this answer is correct by consulting the graph. The graph shows a positive correlation (means that the slope should be positive), and if you count the graph unit squares, you get that the graph moves up 9 squares and over 7 squares between the two points shown, letting us know we got the right answer.
Hope this helps!
