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3 years ago

Find all of the polar coordinates for (6, 31 degrees)

Mathematics

1 answer:

Jobisdone [24]3 years ago

8 0

(6, 31+2pi degrees)
(6, 31+4pi degrees)
(-6, 31-pi degrees)
(6, 31-2pi degrees)

etc. etc.

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adiocarbon dating of blackened grains from the site of ancient Jericho provides a date of 1315 BC ± 13 years for the fall of the

Zigmanuir [339]

Answer:

$\left(\frac{m(t)}{m_{o}} \right)_{min} \approx 0.659$ and $\left(\frac{m(t)}{m_{o}} \right)_{max} \approx 0.661$

Step-by-step explanation:

The equation of the isotope decay is:

$\frac{m(t)}{m_{o}} = e^{-\frac{t}{\tau} }$

14-Carbon has a half-life of 5568 years, the time constant of the isotope is:

$\tau = \frac{5568\,years}{\ln 2}$

$\tau \approx 8032.926\,years$

The decay time is:

$t = 1315\,years + 2007\,years \pm 13\,years$ (There is no a year 0 in chronology).

$t = 3335 \pm 13\,years$

Lastly, the relative amount is estimated by direct substitution:

$\frac{m(t)}{m_{o}} = e^{-\frac{3335\,years}{8032.926\,years} }\cdot e^{\mp\frac{13\,years}{8032.926\,years} }$

$\left(\frac{m(t)}{m_{o}} \right)_{min} = e^{-\frac{3335\,years}{8032.926\,years} }\cdot e^{-\frac{13\,years}{8032.926\,years} }$

$\left(\frac{m(t)}{m_{o}} \right)_{min} \approx 0.659$

$\left(\frac{m(t)}{m_{o}} \right)_{max} = e^{-\frac{3335\,years}{8032.926\,years} }\cdot e^{\frac{13\,years}{8032.926\,years} }$

$\left(\frac{m(t)}{m_{o}} \right)_{max} \approx 0.661$

4 0

3 years ago

But how is is it 1 hour and 45 minutes(someone please respond this is due tomorrow)I need work

astraxan [27]

Because it is every hour there's 60min so that's and hour the the next 45 min are different

4 0

3 years ago

Last Tuesday was silly hat day at Molly's school. 90 students wore a silly hat and 810

Elan Coil [88]

There are a total of 900 students at Molly’s school. 810 is 90% of 900. 90% of students did not wear a silly hat.

5 0

2 years ago

Alice owns a monthly salary of $315 plus a commission on her total sales last month or total sales were $9640 and she earned a t

miskamm [114]

It's $1082.60•9640 which equals 1'"0=*000.

6 0

3 years ago

40% of the students in a school band play brass instruments while 4 students play strings instruments

MaRussiya [10]

10 students (brass)=40% of band
4 students (strings)=16% of band
? students (other)=44% rest of band
14/56%=?/44%
(cross multiply to find ?){don't forget to turn percents into decimals}
?=11
There are 25 students in total in the band.

5 0

3 years ago