For every mile, it’s two centimeters. It’s 2 cm per mile.
Answer:
graph g(x)=1/4 x^2 - 2
Step-by-step explanation:
You are to replace x with (1/2x) in the expression x^2-2
So you have (1/2x)^2-2
1/4 x^2-2
Graph some points for g(x)=1/4 x^2-2
The vertex is (0,-2) and the parabola is open up.
I would graph 2 more points besides the vertex
x | g(x) ordered pairs to graph
----------- (-1,-1.75) and (0,-2) and (1,-1.75)
-1 -1.75
0 -2
1 -1.75
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Answer: alternative C.
Step-by-step explanation: The samples chosen in surveys are often representative when taking the whole population in consideration. They <u>have to be chosen in a random way so they are representative and there's no bias playing a role in the results</u>. Therefore, the variance calculated on the samples are good estimations of the population variancies, since they represent the population in the best way possible.
