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yawa3891 [41]
3 years ago
14

Mel has 12 cookies.1/4 of the cookies are sugar cookies.how many are sugar cookies?

Mathematics
1 answer:
erik [133]3 years ago
3 0

There are 3 sugar cookies.

To find the amount of cookies, multiply 12 by 1/4.

12 \times  \frac{1}{4}  = 3

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Andrej [43]
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
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distribute
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vertex form is
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