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3 years ago

Prove that 3: 8 is equivalent to 12: 32

1 answer:

6 0

3:8 can also be written as 3/8

12:32 can also be written as 12/32

$\frac{12}{32} = \frac{3\times 4}{8\times 4} = \frac{3}{8}$

So thus 3:8 is equivalent to 12:32

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Situation:

Arturiano [62]

Answer:

t = 6162 years

Step-by-step explanation:

Apparently you are asked to use the constant k = 0.0001 instead of the most common 0.00012. We'll answer the problem using such number you typed, but make sure that there is no omission in your typing.

The equation to use is that for carbon decay:

$N(t)=N_0\,e^{-0.0001\,\,t}$

If the skull contains 54% of its original amount of C14, then that means that :

$N(t)=0.54 \,\,N_0$

we use this to solve for the time (t) in our equation:

$0.54\,\,N_0=N_0\,e^{-0.0001\,\,t}\\\frac{0.54\,\,N_0}{N_0}=e^{-0.0001\,\,t}\\0.54=e^{-0.0001\,\,t}\\ln(0.54)=-0.0001\,\,t\\t=\frac{ln(0.54)}{-0.0001} \\t=6161.86\,\,years$

which rounded to the nearest year as requested gives :

t = 6162 years

8 0

3 years ago

What is the value of the digit 4 in the number 84230

Ratling [72]

The value of the digit 4 is worth 4,000 in the number 84,230.

8 0

3 years ago

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If a rectangle has a length of 4 square root of 2 and a width of 7 square root of 18 what

Orlov [11]

Answer:8^4 + 14^36 is the perimeter because they are for sides in a rectangle so you have to double the amount.

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3 years ago

What is the height, x, of the equilateral triangle shown?

lbvjy [14]

Answer:

I think it's either 10√3 or 10

5 0

2 years ago

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irakobra [83]

Answer:

Step-by-step explanation:

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3 years ago

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