Help pls asappp!!!no rocky!

Mathematics

1 answer:

cupoosta [38]3 years ago

8 0

Step-by-step explanation:

slope = -9

y - -4 = 9(x - 2)

y+ 4 = 9x -18

y = 9x - 22

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Find the area? need help guys!!

Sergeu [11.5K]

Area = (x+6)(x+2) = x^2 + 8x + 12

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2 years ago

A) show that $n(2n + 1)(7n + 1)$ is divisible by 6 for all integers $n$.

goldenfox [79]

Hi,

A)
$\dfrac{n(2n+1)(7n+1)}{6} \\

= \dfrac{14n^3+9n^2+n}{6} \\

= \dfrac{12n^3+6n^2}{6} + \dfrac{2n^3+3n^2+n}{6} \\

=2n^3+n^2+ \dfrac{n(2n^2+3n+1)}{6} \\

= 2n^3+n^2+ \dfrac{n(n+1)(2n+1)}{6} \\

= 2n^3+n^2+ 1^2+2^2+3^2+...+n^2\ is\ an\ integer.
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B)
Only if n=4*k or n=4*k+1 , k beeing an integer.

8 0

3 years ago

Hurry help ASAP!!!!!!!!!!! will give brainliest

Shtirlitz [24]

1. 3+2+1+2+3+1=12
2. 5+6+6+7+6+6=36
3. 2+4+3+3+2+4=18

Then add all those numbers up and divide them by 18.
12+36+18=66/18=3.6 you can round it up to c.4.

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2 years ago

Compare. Write <,>,or =.<br> 250 lb __ 0.25 T

Llana [10]

Answer: 0.25 T is bigger

Step-by-step explanation:

0.25 T = 500 lb

4 0

3 years ago

DiKsa [7]

X=6-58

X=(-52)

You use the inverse operation to get X by itself.

4 0

3 years ago