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kirill115 [55]
3 years ago
12

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

Mathematics
1 answer:
umka2103 [35]3 years ago
6 0

Answer:

C

Step-by-step explanation:

See pic below for why...

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An old bone contains 80% of its original carbon-14. Use the half-life model to find the age of the bone. Find an equation equiva
Ira Lisetskai [31]

Answer:

An old bone contains 80% of its original carbon-14 in 1844.6479 years

Step-by-step explanation:

We know that

half life time of C-14 is 5730 years

so, h=5730

now, we can use formula

P(t)=P_0(\frac{1}{2})^{\frac{t}{h} }

we can plug back h

and we get

P(t)=P_0(\frac{1}{2})^{\frac{t}{5730} }

An old bone contains 80% of its original carbon-14

so,

P(t)=0.80Po

we can plug it and then we solve for t

0.80P_0=P_0(\frac{1}{2})^{\frac{t}{5730} }

0.80=(\frac{1}{2})^{\frac{t}{5730} }

\ln \left(0.8\right)=\ln \left(\left(\frac{1}{2}\right)^{\frac{t}{5730}}\right)

t=-\frac{5730\ln \left(0.8\right)}{\ln \left(2\right)}

t=1844.6479

So,

An old bone contains 80% of its original carbon-14 in 1844.6479 years


4 0
2 years ago
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For a car to qualify as a High Occupancy Vehicle (HOV), it must have at least _____ people.
Ad libitum [116K]

Answer: i would like to sad it varies

Step-by-step explanation: the number of people required for a Vehicle to be an HOV i would say exactly 2 and greater. The state Laws also applies, so i'll add that onto it varies

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2 years ago
Write an expression that equals 40 include the Exponent
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Maybe let's just do the prime factorization.

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4 0
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Question 1
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6 means go to the right six times while -7 means go down seven times

Step-by-step explanation:

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3 years ago
Whats 126/399 in its simplest form
marusya05 [52]
A common factor of both 126 and 399 is 3 so we can divide both numbers by 3.

126 / 3 = 42
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A common factor for both 42 and 133 is 7 so we can divide both numbers by 7.

42 / 7 = 6
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19 is a prime number so we can't reduce it anymore, therefore 126/399 in its simplest form is 6/19
4 0
3 years ago
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