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marishachu [46]
3 years ago
6

Answer? 225 or 300?

Mathematics
1 answer:
saveliy_v [14]3 years ago
6 0
-7(x+y=525)-7
3x+7y=2775

-7x-7y=-3675
3x+7y=2775

-4x=-900
X=-900/-4
X=225
Answer is c
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Identify the expression as a numerical expressionor a variable expression. For a variable expression, name the variable.
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Answer:

Numerical expression

Step-by-step explanation:

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3 years ago
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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.

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Factorize

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

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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
I need this for a geometry assignment........please help
anastassius [24]

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In ∆PRQ and rest two

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2 years ago
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3 years ago
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Dennis_Churaev [7]
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7 0
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Read 2 more answers
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