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IrinaVladis [17]
2 years ago
8

The sum of the squares of 4 consecutive integers is an even integer.

Mathematics
1 answer:
oksian1 [2.3K]2 years ago
5 0

Answer:

yes

Step-by-step explanation:

Let's call the first integer n and let's compute.n^2 + (n+1)^2 + (n+2)^2 +(n+3)^2 = \\n^2 + \\n^2+2n+1 + \\\ n^2+4n+4 + \\\ n^2+6n+9+\\\ n^2+8n+16  =\\4n^2+20n +30 = 2 (2n^2+10n+15)

Which is indeed of the form 2(something), so it is even.

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I need help on this one please
TiliK225 [7]

Hi

Income tax is  progressive

So with  50 000  we have  :  

0.02*3000 + 0.03 ( 5000 -3001) + 0.05 ( 17 000-5001) + 0.0575 ( 50 000 - 17 001) =  60+ 59.97+599.95 + 1897.44 =  2617.36

tax is = 2617.36

5 0
3 years ago
Find the slope-intercept equation of the line
Ad libitum [116K]

Answer:

y = -1/2x - 1/2

Step-by-step explanation:

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2 years ago
Jessica is organizing a guided tour of the rain forest. The average profit per person that the touring company makes is given by
Allushta [10]

As a practical equation, this one doesn't make much sense -- why would the profit per person have a term proportional to the number of people?  Let's just go with it.

18x + \dfrac{35}{x}

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That's the answer to the first part.

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4 0
3 years ago
Can someone help me with this question????PLEASE
kiruha [24]
Divide the number of quarts of beef soup by the number of cups of vegetables.
1000 / 510

you should get 1.96
If your teacher wants you to round up you should try 2.
3 0
3 years ago
Read 2 more answers
A student said thst the distance between (-5,7) and (3,7) is 2 units<br>is the student correct?
Usimov [2.4K]

No.


The distance is |-5 -3| = 8 units. (Y-coordinates are the same, so the distance is measured entirely in the x-direction. Distance is non-negative.)

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3 years ago
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