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2 years ago

The half-life of carbon-14 is 6000 years. gow much of a 15g sample will remain after 1500 years

Mathematics

1 answer:

AleksandrR [38]2 years ago

7 0

Answer:

quantity remains, Nt = 12.613 grams

Step-by-step explanation:

N(t) = N0(1/2)^(t/t1/2)

quantity remaining = initial amount * (1/2)^(elapsed time/half life)

quantity remaining = 15 * (1/2)^(1500/6000)

quantity remaining = 15 * (1/2)^(1/4)

quantity remaining = 15*.84089641525

quantity remaining = 12.6134462287

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Identify the coefficient and constant in the expression: 3 + p - 4k

postnew [5]

Answer:

4 is the co efficient and 3 is the constant

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3 years ago

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URGENT HELP PLEASE<br><br><br> Using the proof above, what is the reason for statement 6?

marta [7]

Answer:

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Step-by-step explanation:

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3 years ago

In a company, 37% of 1500 employees are females.work out the number of males in the company.

a_sh-v [17]

Formula:

$y = p\% \times x$
$p = 37\% \div 100 = 0.37$
$y = 0.37 \times 1500 = 555$
so there are 555 woman working.
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3 years ago

What is 0.482 repeating as a simplified fraction?

weeeeeb [17]

the idea being, we multiply the value by some power of 10 just to move the repeating digits to the left of the decimal point. We have 3 digits, we'll use 1000, anyhow, without further adieu,

$\bf \begin{array}{|ccl|ll}
\cline{1-3}
\stackrel{\qquad}{x=0.\overline{482}}&&\\
\cline{1-3}
&&\\
\stackrel{\textit{3 digits, we use 3 zeros}}{1000\cdot x}&=&482.\overline{482}\\
&&482+0.\overline{482}\\
&&482+x\\
&&\\
\cline{1-3}
\end{array}\implies 1000x=482+x
\\\\\\
999x=482\implies x=\cfrac{482}{999}$

4 0

3 years ago

Could anyone help me with this?

mario62 [17]

Answer:

x = 17

Step-by-step explanation:

Opposite Angles must be the Same Value so In other words, 2(8x - 5) + 2(4x - 19) = 360.

2(8x - 5) + 2(4x - 19) = 360

24x - 48 = 360

24x = 408

x = 17

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3 years ago

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