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nikitadnepr [17]
3 years ago
15

I need help solving this math problem.

Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0

Answer:

∠RQS = 100°

Step-by-step explanation:

The angles 5x + 5 and 11x - 65 form a linear pair. That is they sum to 180°

Sum the 2 angles and equate to 180, that is

5x + 5 + 11x - 65 = 180

16x - 60 = 180 ( add 60 to both sides )

16x = 240 ( divide both sides by 16 )

x = 15

∠RQS = 11x - 65 = (11 × 15) - 65 = 165 - 65 = 100°


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\\\\\\\-------!!!!!40 POINTS!!!!-----\\\\\\\\\
aleksandrvk [35]
Let's actually find the line of best fit...

m=(nΣyx-ΣyΣx)/(nΣx^2-ΣxΣx)

m=(11*836-130*55)/(11*385-3025)

m=2046/1210  

m=93/55

b=(Σy-93Σx/55)/n

b=(55Σy-93Σx)/(55n)

b=(7150-5115)/(55*11)

b=185/55, so the line of best fit is:

y=(93x+185)/55

A)  The approximate y-intercept (the value of y when x=0) is 185/55≈3.36.

Which means that those who do not practice at all will win about 3.36 times

B) y(13)=(93x+185)/55

y(13)≈25.34

So after 13 months of practice one would expect to win about 25.34 times.
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