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Olenka [21]
3 years ago
15

If 5^n x 5^3 = 5^6, then n is _____. A) 18 B) 2 C) 3 D) 9

Mathematics
2 answers:
Eddi Din [679]3 years ago
6 0
<h3>Answer:  C) 3</h3>

The rule we'll use is a^b*a^c = a^(b+c). So we add the exponents.

That means 5^n*5^3 = 5^(n+3)

So 5^n*5^3 = 5^6 turns into 5^(n+3) = 5^6

The bases are equal to 5, so the exponents be equal to one another.

n+3 = 6

n+3-3 = 6-3

n = 3

So 5^3*5^3 = 5^(3+3) = 5^6.

Diano4ka-milaya [45]3 years ago
5 0

Answer:

n = 3

Step-by-step explanation:

Using the rule of exponents

a^{m} × a^{n} ⇔ a^{(m+n)}

Given

5^{n} × 5³ = 5^{6} , then

5^{n+3} = 5^{6}

Since the bases on both sides are 5, the equate the exponents

n + 3 = 6 ( subtract 3 from both sides )

n = 3

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3 years ago
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3 years ago
What are the co-ordinance of point Q
dimulka [17.4K]

Answer:

<em>(6,3), last option</em>

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<u>Symmetry To A  vertical line</u>

If the point Q (unknown) is symmetric to point P(2,3) with respect to x=4, it means it's located at the same distance to the line as P while keeping the same y-coordinate.

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4 years ago
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Answer:

Step-by-step explanation:

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