Answer:
$32/10 = $3.2/cookie
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
i think c but not sure
Answer:
20% off 45.00 is 36.00
Step-by-step explanation:
The difference is $9.00
<em>Denote x2 by y.
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<em> </em>
<em>(x2-3)7=(y-3)7
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<em>This is a binomial expansion in y, and you want the coefficient of y4 because y4=x8
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<em>You have 7 terms of (y-3) in (y-3)7. To get the fourth power of y, you need to choose y from four of the terms. The number of ways you can do this is the combinations of 7 things taken 4 at a time. This is:
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<em> </em>
<em>7!/(4!3!)=35</em>
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<em>So, the coefficient of x8 in the given expansion will be 210.</em>
<em>HOPE IT HELPS</em>
<em>THANK YOU </em>
