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Artist 52 [7]
3 years ago
10

Can someone help me out with this

Mathematics
2 answers:
Semmy [17]3 years ago
7 0
-2

Because it has an open circle on it.
Mrac [35]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

dots not on it Like others

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What type of system is the following set of equations?
iVinArrow [24]
-3x+y=-2 \\
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-3x+y=-2 \\
\underline{-y+4=6x} \\
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-3x+4=6x-2 \\
-3x-6x=-2-4 \\
-9x=-6 \\
x=\frac{-6}{-9} \\
x=\frac{2}{3} \\ \\
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You sell the shoes pictured during your 6-hour shift. The prices are:
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Answer:

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dezoksy [38]
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Prove that for any natural n the number 3^(n+4)−3^n is divisible by 16.
gtnhenbr [62]

Answer:

Proved (See Explanation)

Step-by-step explanation:

Show that 3ⁿ⁺⁴ - 3ⁿ is divisible by 16.

This is done as follows

\frac{3^{n+4} - 3^n}{16}

From laws of indices;

aᵐ⁺ⁿ = aᵐ * aⁿ.

So, 3ⁿ⁺⁴ can be written as 3ⁿ * 3⁴.

\frac{3^{n+4} - 3^n}{16} becomes

\frac{3^n * 3^4 - 3^n}{16}

Factorize

\frac{3^n(3^4 - 1)}{16}

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\frac{3^n(80)}{16}

3ⁿ * 5

5(3ⁿ)

<em>The expression can not be further simplified.</em>

<em>However, we can conclude that when 3ⁿ⁺⁴ - 3ⁿ is divisible by 16, because 5(3ⁿ) is a natural whole number as long as n is a natural whole number.</em>

3 0
3 years ago
Help with 19, 19a, and 19b please
Nina [5.8K]
The answer to 19b is 35

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