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Sophie [7]
3 years ago
12

I need help please and thank you

Mathematics
1 answer:
Alik [6]3 years ago
8 0

Answer:

A=2(wl+hl+hw)

Step-by-step explanation:

a=72

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The half-life of a certain radioactive material is 78 hours. An initial amount of the material has a mass of 790 kg.. Write an e
adoni [48]
<span> half life i= 78 hours 
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395 = 790e^(k*78) 

Dividing by 790 and taking natural log
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nataly862011 [7]
First, we need to transform the equation into its standard form (x - h)²=4p(y - k).
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This is a vertical parabola and its focus <span>(h, k + p) is (-1/14, -391/196 + 1/56) = (-1/14, -775/392).

Or (-0.071,-1.977).</span>
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