A recent study investigated whether renowned violinists were able to classify the age of a violin. In the study, violins constru
cted before 1900 and violins constructed after 2010 were used. The violinists played each violin and were asked to classify the violin as old (constructed before 1900) or new (constructed after 2010). The responses are shown in the following table.
Which of the following statements is supported by the results in the table?
1.)The proportion of all new violins that are correctly classified is equal to the proportion of all old violins that are correctly classified.
2.)The proportion of all new violins that are incorrectly classified is equal to the proportion of all old violins that are correctly classified.
3.)The proportion of all incorrectly classified violins that are old is equal to the proportion of all correctly classified violins that are new.
4.)The proportion of all incorrectly classified violins that are new is equal to the proportion of all correctly classified violins that are new.
5.)The proportion of all correctly classified violins that are old is equal to the proportion of all new violins that are incorrectly classified.
Which of the following statements is supported by the results in the table?
1.)The proportion of all new violins that are correctly classified is equal to the proportion of all old violins that are correctly classified.
2.)The proportion of all new violins that are incorrectly classified is equal to the proportion of all old violins that are correctly classified.
3.)The proportion of all incorrectly classified violins that are old is equal to the proportion of all correctly classified violins that are new.
4.)The proportion of all incorrectly classified violins that are new is equal to the proportion of all correctly classified violins that are new.
5.)The proportion of all correctly classified violins that are old is equal to the proportion of all new violins that are incorrectly classified.
1 answer:
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Consider the function . First you need to simplify it by expressing the perfect square:
So you get .
Now you can consider all transformations that have been applied to the graph of to produce the graph of g(x):
- translate the graph of the function
right 10 units - this transformation gives you the graph of the function
;
- reflect graph of the function
about the x-axis. This transformation gives you the graph of the function
;
- stretch the graph of the function
in the y-direction by multiplying the whole function by 5, then you get the function
;
- translate the graph of the function
up 50 units, then you get the graph of the function
.
From the algorithm above you can conclude that choices B, E and F are correct.
Answer:
Step-by-step explanation:
To work out x is easy as they are corresponding angles x will also equal 50
however to work out y you just need to minus 180 and 50 to give 130