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const2013 [10]
2 years ago
11

 GEOMETRY)

Mathematics
1 answer:
evablogger [386]2 years ago
8 0

Answer: 130

Step-by-step explanation:

Let the measure of arc DB be x.

Then,

80=\frac{x+30}{2}\\\\160=x+30\\\\x=130

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Here is what I got for the first one. MAD= 1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|) =1/5(|85-83|+|83-83|+|87-83|+|90-83|+|70-83|) =1/5(2+0+4+7+13)) =5.2 And for the second one I got, MAD= 1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|) =1/5(|75-76|+|74-76|+|68-76|+|83-76|+|80-76|) =1/5(1+2+8+7+4)) =4.4
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3 years ago
8. Simplify 5mn2 - 8m + mn2.
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Answer:

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marusya05 [52]
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