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3 years ago

9

Can someone help on this question plz

1 answer:

LUCKY_DIMON [66]3 years ago

7 0

Answer:

what is this que bro i don't see bro

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Use rounding to estimate the difference of 18.14 - 9.88.<br><br> A. 6<br> B. 9<br> C. 7<br> D. 8

Anna35 [415]

Answer:

D. 8 is the answer

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2 years ago

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Can you please help me<br> sorry this is hard for me but i’ll give u brainliest and 70 points

devlian [24]

Answer:

-9 + 5 = -4

Step-by-step explanation:

I think that's what your asking.....

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2 years ago

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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.
$

B)
Only if n=4*k or n=4*k+1 , k beeing an integer.

8 0

3 years ago

There was a triangle that had sides that were 5. 6, 6. 5, and 8.7 inches in length If Rochelle wanted to create a larger triangl

r-ruslan [8.4K]

Answer:

The answer is: 11.2, 13 and 17.4

Step-by-step explanation:

The scale factor of 2 means that we will build a triangle with sides of double lenght than original one.

So sides will be

$5.6\times 2=11.2$

$6.5\times 2=13$

$8.7\times 2=17.4$

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3 years ago

make a conjecture (prediction) about the table. what will happen if we continue the table, going down?

timurjin [86]

278 would be it I think but not sure

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3 years ago