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Gennadij [26K]
3 years ago
6

(3m2 + 5m - 2) + (-2m +18)?

Mathematics
2 answers:
Alex3 years ago
7 0
(3m2+5m-2)+(-2m+18) is 9m+16
sergeinik [125]3 years ago
3 0

Answer:

3m^{2}+3m+16

Step-by-step explanation:

Start with:

(3m^{2} +5m-2)+(-2m+18)\\

Combine like terms:

3m^{2}+3m+16

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When given an algebraic expression involving subtraction, why is it best to rewrite the expression using addition before identif
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<span>It is best to rewrite the expression using addition before identifying the terms because when you have subtraction figures, those would make a term negative. As a result, it would be easier to accidentally misinterpret a term that is negative as positive when evaluating an expression. Rewriting it using addition would put the negative terms in parenthesis and make it easier to transpose those terms and ensure correct identification and use.</span>
7 0
4 years ago
At Springfield Middle School, there are ​n​ 7th graders, and ​p​% of them play at least one sport. Which expression represents t
Darina [25.2K]

Answer:

(1-0.01p)/n

Step-by-step explanation:

Mathematically;

Percentage of student playing at least one sport = 100% - Percentage of students playing no sport

Mathematically, that would be;

Percentage playing no sport = 100% - p%

So, to find this in n 7th graders

we have;

(100-p)/100 * n

= 100-P/100n = 1/n - P/100n

= 1/n - 0.01p/n

= (1-0.01p)/n

8 0
3 years ago
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6 0
3 years ago
What is the width of it
notka56 [123]
The width of the rectangle is 16cm. this is because 16x4 = 64. so the height of the rectangle is 64 cm and 16cmx64cm = 1024cm squared. which is why the width of the rectangle is 16cm.
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3 years ago
Help ASAP thanks a lot
Setler79 [48]
I wish I could help you out on that
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4 years ago
Read 2 more answers
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