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-Dominant- [34]
2 years ago
7

Expand. If necessary, combine like terms (2+x)(2-x)

Mathematics
1 answer:
Anastaziya [24]2 years ago
5 0

Answer:

-x^2+4

Step-by-step explanation:

2*2=4

2(-x)+2(x)=0

x(-x)=-x^2

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Step-by-step explanation:

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3 years ago
If 43 of the 148 reams of paper purchased by a department are used, what is the percentage that remains?
Wewaii [24]
100%/x%=148/43
<span>(100/x)*x=(148/43)*x       - </span>we multiply both sides of the equation by x
<span>100=3.44186046512*x       - </span>we divide both sides of the equation by (3.44186046512) to get x
<span>100/3.44186046512=x </span>
<span>29.0540540541=x </span>
<span>x=29.0540540541

</span>now we have: 
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3 0
3 years ago
Read 2 more answers
True or false that integers can be negative numbers
lisov135 [29]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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