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Lapatulllka [165]
3 years ago
6

I don't know how to do this, need help.

Mathematics
2 answers:
miskamm [114]3 years ago
4 0

Answer:

its -6 times 10 to the power of 1

Step-by-step explanation:

You first put the numbers that relate so it will be -3 times 2 and 10 to the power of 4 times 10 to the power of -3, -3 times 2 equal -6 and 10^4 times 10^-3 equal 10 to the power of 1.

garik1379 [7]3 years ago
4 0

Answer:

(-30000) · (\frac{2}{1000\\}) = <u><em>-60</em></u>

Step-by-step explanation:

Base: (-3 · 10⁴) · (2 · 10⁻³)

Simplify the power terms. A make a negative exponent positive, flip it over the fraction bar, it works both ways: (-3 · 10000) · (\frac{2}{10^{3} })

(-3 · 10000) · (\frac{2}{1000})

(-30000) · (0.002)

= -60

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The half-life of lead is 22 years. How long will it take for a sample of this substance t decay to 80% of its original amount?
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