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3 years ago

Ajay is on the swim team. He improved his time on

Mathematics

1 answer:

ozzi3 years ago

5 0

Answer:

Step-by-step explanation

50/32= 1.56yard per second ; 50/31= 1.61 yard per second

1.61-1.56= 0.05* 100= 5%

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2 years ago

The radioactive substance uranium-240 has a half-life of 14 hours. The amount At of a sample of uranium-240 remaining (in grams)

Galina-37 [17]

Answer:

Amount after 9 hours: 1793 grams

Amount after 40 hours: 386 grams

Step-by-step explanation:

Given exponential function, that shows the amount of radioactive substance uranium-240 after t hours,

$A(t)=2800(\frac{1}{2})^\frac{t}{14}$ ......(1)

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