Collecting data through observation involves looking directly at an on going behavior about a phenomenon in its natural setting. Here you observed statistical data present in the web about the school's performance on SAT subject.
Step-by-step explanation:
Demographics are statistical data about a trend in a population such as scores, gender or income. In Observation method you simply check and see what has been happening in a population using available data concerning a phenomenon. Here , searching in the web for data about score on SAT subjects for the school will give you the idea of previous performance by students in that school which could help you come up with a hypothesis structured around these results.
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Keywords : Data collection methods, demographics, case study
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Answer:
8 represents the temperature at the mid night of Friday was 8°.
Step-by-step explanation:
The weather service measures the temperature, T, every hour, h, beginning at midnight of each 24-hour period.
If on Friday, the temperature was modeled by T = 43h + 8.
That means at h =0 i.e. at the midnight the temperature T is given by 8.
So, 8 represents the temperature at the midnight of Friday was 8°. (Answer)
Answer:
A.) Even.
Step-by-step explanation:
If a function is an even function, then
F(-x) = f(x)
Also, if a function is an odd function, then, f(-x) = -f(x)
You are given the below function
f(x) = 1 + 3x^2 − x^4
Let x = 2
Substitute 2 for x in the function
F(x) = 1 + 3(2)^2 - (2)^4
F(x) = 1 + 3(4) - 16
F(x) = 1 + 12 - 16
F(x) = -3
Also, Substitute -2 for x in the function
F(x) = 1 + 3(-2)^2 - (-2)^4
F(x) = 1 + 3(4) - 16
F(x) = 1 + 12 - 16
F(x) = -3
Since f(-x) = f(x), we can conclude that
F(x) = 1 + 3x^2 - x^4 is even
Answer:
Correct choice is B
Step-by-step explanation:
All given options represent quadratic function. Let the equation of this quadratic function be
Then
1.
2.
3.
Solve the system of two equations:
Then
Thus, the equation of the function is
Note that
Fog(x)=f(g(x))=f(3x^2-2)=3(3x^2-2)-2=9x^2-8