Show that only one n, n+2 and n+4 are divisible by 3

Mathematics

1 answer:

babymother [125]3 years ago

3 0

N+2 divide 3 so it should be correct hope it helped

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elect all that apply. A card is randomly drawn from a deck of cards. (There are 52 cards in a deck, with 13 cards of each suit.)

raketka [301]

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3 years ago

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alekssr [168]

Answer:

X = 0.9

Step-by-step explanation:

$\frac{2.7}{5.1} = \frac{x}{1.7} \\ \frac{2.7 \times 1.7}{5.1} = x \\ x = 0.9$

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3 years ago

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Square of which numbers are equal to 4?

shusha [124]

The answer would be 2 because a square root has to be the same 2 numbers which is 2 for this example. 2x2=4. Hope this helps! If you have anymore questions please ask me. Stay Safe! And have a good day!

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3 years ago

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nadya68 [22]

Answer:

Do need help........still

Step-by-step explanation:

5 0

3 years ago

Pls help me simplify thisss

Step2247 [10]

9514 1404 393

Answer:

2a(a^3 +a^3 b^2 +a b^2 +b^3)/(a^2 +b^2)

Step-by-step explanation:

Division is the same as multiplication by the inverse. Multiplication and division proceed left-to-right. So, we can rewrite the expression as ...

$\dfrac{a^3+a^3b^2+ab^2+b^3}{2a(a-b)^2}\times\dfrac{a^2-b^2}{a+2b}\times\dfrac{a^2+ab-2b^2}{a+b}\times\dfrac{4a^2}{a^2+b^2}\\\\=\dfrac{(a^3+a^3b^2+ab^2+b^3)(a-b)(a+b)(a+2b)(a-b)(4a^2)}{2a(a-b)^2(a+2b)(a+b)(a^2+b^2)}\\\\=\dfrac{4a^2}{2a}\cdot\dfrac{(a-b)^2}{(a-b)^2}\cdot\dfrac{a+2b}{a+2b}\cdot\dfrac{a^3+a^3b^2+ab^2+b^3}{a^2+b^2}\\\\=\boxed{\dfrac{2a(a^3+a^3b^2+ab^2+b^3)}{a^2+b^2}}$

5 0

2 years ago