Mikayla asked 10 of her friends how many hours of TV they watch in a week. Three of her friends said 8 hours, two of her friends said 9 hours, two of her friends said 11 hours, one of her friends said 12 hours, and two of her friends said
14 hours. Mikayla wanted to make a dot plot of the data she gathered. In what order would she create the dot plot?
Draw a number line from 8 to 14. Show the frequency of each number. Title the dot plot.
Show the frequency of each number. Title the dot plot. Draw a number line from 8 to 14.
Title the dot plot. Show the frequency of each number. Draw a number line from 8 to 14.

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   8      9     10     11     12     13     14  (number of hours spent)

                dot plot

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204