Plz last attempt on quiz i dont understand. an student is listening to songs that are on his phone. on his phone, he has 10 country songs, 15 pop songs, 5 r& b songs, 10 rap songs, and 5 techno songs (for a total of 45 songs). he set his phone to shuffle so that it randomly plays music. if the phone randomly selects the next song, what is the probability that it will play a pop song?

write fractions for each type of song out of the total

10/45 country

15/45 pop

5/45 r&b

10/45 rap

5/45 techno

write these fractions in their simplest forms

2/9 country

1/3 pop

1/9 r&b

2/9 rap

1/9 techno

the chances of the next song played on shuffle being pop is 15/45, or 1/3

(hope this helps! if it does, please give brainliest! thank you x)

the range of a function is the range of y-values for which it is defined, or exists. given that we are only looking at the y-values, we can already discount the first two answers as they deal with the domain of the function (range of x-values).

now, what we need to do is find the smallest and highest y-values for which the function is defined. if you'd like, you could take a ruler and start at the very bottom of the graph, find the lowest point, then move the ruler higher and higher until you reach the highest point. doing so either in your head or with an actual ruler, we can see that the lowest y-value is -5 and the highest y-value is -1.

the question now remains as to whether they are included in the range (fourth answer) or excluded (third answer). the key here is to recognise whether they are marked with an open or a closed circle. since both (-2, -5) and (2, -1) are marked with a closed circle, they are points that exist on the graph and are thus included in the range (note that if they were marked with an open circle like (4, -2) then that would signify that there is a break in the graph at that point).

thus, the fourth answer, (y | -5 ≤ y ≤ -1), is correct.

also note that usually it is good practice to scan your eye inbetween the highest and lowest point for any breaks in the graph - we do have one here at (4, -2), however -2 is still included in the range because there is another point that is included in the graph with the same y-value, ie. point (1, -2).

i hope that but if you require any further explanation don't hesitate to comment below.

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