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kondaur [170]
3 years ago
7

20 points to answer both a and b

Mathematics
2 answers:
Katen [24]3 years ago
8 0
I only did A sorry I couldn’t figure out B Im not that good at explaining things. Hope you get it right I showed the work in the picture.

Anarel [89]3 years ago
3 0

Answer:

a. mean = - 1,115,000 visitors i believe not sure about b forgot all this

Step-by-step explanation:

do 11,150,000/10

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The answer is B or CBE
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Point b is the midpoint of ac-. if ab= 4x+2 and ac=10x-6, find the length of ac
Natasha2012 [34]

let's bear in mind that B is the midpoint and thus it cuts a segment into two equal halves.

\bf \underset{\leftarrow \qquad \textit{\large 10x-6}\qquad \to }{\boxed{A}\stackrel{4x+2}{\rule[0.35em]{10em}{0.25pt}} B\stackrel{\underline{4x+2}}{\rule[0.35em]{10em}{0.25pt}\boxed{C}}} \\\\\\ AC=AB+BC\implies 10x-6=(4x+2)+(4x+2)\implies 10x-6=8x+4 \\\\\\ 2x-6=4\implies 2x=10\implies x=\cfrac{10}{2}\implies x= 5 \\\\[-0.35em] ~\dotfill\\\\ AC=(4x+2)+(4x+2)\implies AC=[4(5)+2]+[4(5)+2] \\\\\\ AC=22+22\implies AC=44

3 0
3 years ago
3) If it takes 3/29 of the coal for the train to go 1 mile, how much of the coal would it take to go 6.3 miles?
nevsk [136]

Answer:

18.9/29 or 65.17% of the coal.

Step-by-step explanation:

3/29 x 6.3 = 18.9/29

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Step-by-step explanation:

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We know that the center is (-7, 0), so we can plug that into the equation like this: (x +7)^2 + y^2 = r^2

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So, your standard form equation is the following:

(x +7)^2 + y^2 = 27

6 0
3 years ago
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