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Mama L [17]
4 years ago
11

C an you simplify 5^-8 x 5^4

Mathematics
1 answer:
EastWind [94]4 years ago
6 0

Answer:

1/625

Step-by-step explanation:

Exponent Rule: (b^m)(b^n) = b^{m+n}

Exponent Rule: b^{-m}=\frac{1}{b^m}

5⁻⁸ · 5⁴ = -8 + 4 = -4

5⁻⁴

1/5⁴

1/625

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The sound wave with a <u>frequency of 20</u> waves/sec is 800 longer than the wavelength of a sound wave with a <u>frequency of 16,000</u> waves/sec

<h3>Calculating wavelength </h3>

From the question, we are to determine how many times longer is the first sound wave compared to the second sound water

Using the formula,

v = fλ

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Where v is the velocity

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Learn more on Calculating wavelength here: brainly.com/question/16396485

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