<h3>
Answer: See attached image below</h3>
Explanation:
The law of sines is
This is the same as writing
Because we apply the reciprocal to each side to keep things balanced
Note how the 'a's stick together on one side, so do the 'b's and 'c's.
For something like 
we can see the 
portion, but now there's an 'a' in there. This is from multiplying both sides of the equation below by 'a'
The summary is that the 'a' pairs with sin(A) and that's what matches with expression number 1.
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For expression number 2, we'll have it pair with sin(B). This is because the 'c's already are taken care of (they are paired up) and there's an extra b all by itself. The working/steps will basically look like what is shown in the section above, though you'll use the equation 
Expression 3 will match with sin(C) for similar reasons as expression 2. The 'c' is the only letter that isn't paired up.
The other expressions will match in similar fashion. The filled out answers are shown in the attached image below.
Sandy ran 6 km, and Marisa ran 3.5 km.
6 + 3.5 = 9.5
I really hope this helped you out! c:
Answer:
OC
Step-by-step explanation:
4×3=12m
5+1=6n
4÷1=4
A) The attachment shows the equation of the best-fit line. It is approximately
.. test average = 89.7 -2.93*(hours playing games)
b) The slope indicates the expected drop in test score for each hour spent playing games
c) The y-intercept is the expected test score if no hours are spent playing games.
d) The correlation coefficient is -0.92, a significant negative correlation. One might expect that hours spent playing games indicates a lack of interest in school subjects or studying, hence a likelihood that test scores will be lower.
e) The equation predicts a test score of about 75 for someone who spends 5 hours a week playing video games.
Mean a=75/10, mean b=73/10............about the same
range a=2-10=8, range b=4-12=8.........about the same
