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yulyashka [42]
2 years ago
7

Why might andrew have stopped 3 times for 1 minute?

Mathematics
1 answer:
Schach [20]2 years ago
5 0
Please attach an imagine to your question :)
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Can someone explain HOW to simplify this algebraic fraction, as in tell me why and what I need to do for each step : 1-n/n^2-1
Andreyy89

- I’m assuming the expression implies the following:

(1-n)/(n^2 - 1)

The steps goes as follows:

= -(n-1)/(n^2-1) (factored a negative out)
= -(n-1)/[(n+1)(n-1)] (Factored denominator into a difference of squares, but don’t just blindly accept the fact, expand it and you should get the original denominator)

At this point, the (n-1) terms cancel, as you should know: a real number, besides 0, over itself is 1.

= -1/(n+1) , which is the answer

Note: You could also see it as 1/-(n+1) or 1/(-n-1)
8 0
2 years ago
What is the percentage 33% of $145.00
yan [13]

Answer:

47.85

Step-by-step explanation:

33% of 145

of means multiply

Changing to decimal form

.33* 145

47.85

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3 years ago
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Here!!!!!!!!!!!!!!<br><br>For Kawaii cos 2007<br><br><br>(it needs more words lol.)
Naily [24]

AAAAAAAAAAAAAAAAAA  AAAAAAAAAA A AAAAAAAAA AAAAAAAAAA AAAAAAAAAAA A A A AAAAAAA A A    AAAAA  AAAA.

Step-by-step explanation:

E

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2 years ago
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Help!<br> This is the problem <br><br><br> 1+10k+1-7k
ivolga24 [154]

Answer:

3002

Step-by-step explanation:

Very simple, just add them up.

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2 years ago
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The weight W of an aluminum flatboat varies directly with the length L of the boat. If a 6​-foot boat weighs 102 ​pounds, then w
AnnZ [28]

Answer:

The 11 foot boat ways 187 pounds

Step-by-step explanation:

102 / 6 = 17

17 * 11 = 187

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3 years ago
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