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RideAnS [48]
3 years ago
13

Christina and Stacie each determined the cost of printing posters for their campaigns.

Mathematics
1 answer:
Arisa [49]3 years ago
4 0

Answer:

B.

Christina's price per poster is cheaper than Stacie's price per poster.

Step-by-step explanation:

Divide each value

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For 11-13, solve each equation for the given value of x
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11--12---13 you find the number that is always in the middle of both numbers

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X-y=6, x+y=8, zx+zy=20
Yanka [14]

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6 0
3 years ago
Read 2 more answers
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7 0
3 years ago
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Which of the following tables shows the correct steps to transform x2 + 10x + 24 = 0 into the form (x − p)2 = q?
Leona [35]

x^2+10x+24=0


\text{Use:}\\a^2+2ab+b^2=(a+b)^2


x^2+10x+24=x^2+2\cdot x\cdot5+24


\text{OK. We have}\\a^2=x^2\\2ab=2\cdot x\cdot5\to b=5\\\text{therefore}\ b^2\ \text{must be equal}\ 25=5^2.\\\text{we have:} 24. \text{We have to increase it by 1}\\ \text{Therefore the correct steps are in answer D.}


D.\ Step1\\x^2+10x+24=0\\\\x^2+2\cdot x\cdot5+24=0\\\\x^2+2\cdot x\cdot5+24+1=0+1\\\\Step2\\\\x^2+2\cdot x\cdot5+25=1\\\\x^2+2\cdot x\cdot5+5^2=1\\\\Step3\\\\(x+5)^2=1

3 0
3 years ago
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