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11111nata11111 [884]
3 years ago
11

Please help ...............

Mathematics
1 answer:
Alina [70]3 years ago
3 0

Answer:

<h2>88.2</h2>

Step-by-step explanation:

(look at the picture)

We have opposite and adjacent. Therefore we must use the tangent:

\tangent=\dfrac{opposite}{adjacent}

adjacent=500\\opposite=x\\\tan10^o\approx0.1763

Substitute:

\dfrac{x}{500}\approx0.1763       <em>multiply both sides by 500</em>

x\approx88.15\to x\approx88.2

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Step-by-step explanation:

The amount of an element that will remain after time t can be expressed as a function of initial amount N0, time t, and half life th as;

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