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Artyom0805 [142]
3 years ago
5

a reading teacher recorded the number of pages read in an hour by each of her students. The numbers are shown below: 54,39,29,43

,60,44,35,49,51. for this data, which summary statistic is not correct?
Mathematics
1 answer:
Ilya [14]3 years ago
8 0

Answer: The answer is 29, because that 29 would be the outlier of the numbers.

Step-by-step explanation:

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What equation represents y=2x^2+24x+85 in vertex form
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Y=a(x-h)^2+k

vertex form is basically completing the square

what you do is
for
y=ax^2+bx+c
1. isolate x terms
y=(ax^2+bx)+c
undistribute a
y=a(x^2+(b/a)x)+c
complete the square by take 1/2 of b/a and squaring it then adding negative and postive inside
y=a(x^2+(b/a)x+(b^2)/(4a^2)-(b^2)/(4a^2))+c
complete square
too messy \
anyway

y=2x^2+24x+85
isolate
y=(2x^2+24x)+85
undistribute
y=2(x^2+12x)+85
1/2 of 12 is 6, 6^2=36
add neagtive and postivie isnde
y=2(x^2+12x+36-36)+85
complete perfect square
y=2((x+6)^2-36)+85
distribute
y=2(x+6)^2-72+85
y=2(x+6)^2+13

vertex form is
y=2(x+6)^2+13
8 0
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Step-by-step explanation:

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