¿Cuál es la suma de los divisores primos? N = 28 x 12 x 5

Mathematics

1 answer:

OverLord2011 [107]3 years ago

5 0

Answer:

No hablan español

Step-by-step explanation:

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Which property yields Step 2

abruzzese [7]

Answer:

D) Commutative property of addition

Step-by-step explanation:

Commutative property of addition

a + b = b + a

On this case

-12 + 5x = 5x - 12

Answer

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Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.

charle [14.2K]

Hi,

Sorry i don't understand you "determine the sigma notation of the sum for term 4 through term 15"
$a_1=4\\

a_2=-12=4*(-3)\\

a_3=36=(-12)*(-3)=4*(-3)^2
$

$a_4=4*(-3)^3\\

a_5=4*(-3)^4\\

...

a_{15}=4*(-3)^{14}\\


\sum_{i=4}^{15}a_i\\

=a_4+a_5+...+a_{15}\\
=4*(-3)^3 + 4*(-3)^4+...+4*(-3)^{14}\\
=4*(-3)^3*(1+(-3)+(-3)^2+(-3)^3+...+(-3)^{11}\\

=4*(-3)^3* \dfrac{(-3)^{12}-1}{(-3-1)} \\

=4*(-27)* \dfrac{3^{12}-1}{(-4)}\\

=27*(531441-1)\\

=14348880
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Written like this (x, y)

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