Answer:
the range is 18 and the median is 8
Step-by-step explanation:
Answer:
B.different
Step-by-step explanation:
Rachel read 30 minutes for every 10 minutes that she spent watching television
30 - 10 = 20
Nicolas read 45 minutes for every 15 minutes that he watched television
45 - 15 = 30
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Answer:
she paid $7860
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Answer:
83,491.67 dollars
Step-by-step explanation:
Given that a certain electronics manufacturer ound that the average cost C C to produce x DVD/Blu- ray players can be found using the equation 
To find the minimum average cost per machine we can use derivative test.
we find first and second derivative.
If for a particular value of x first derivative is 0 and second derivative is positive, then that x satisfies the minimum cost criteria.

Second derivative is always positive
I derivative =0 gives

For 83 players the cost would be minimum
Minimum cost = 