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3 years ago

What do you call it when a bunch of kids throw circles at eachother

Mathematics

2 answers:

Hunter-Best [27]3 years ago

6 0

It’s called a pi fight

Juliette [100K]3 years ago

3 0

Pie fight that’s what it’s called or are you talking about something else

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Modeling Radioactive Decay In Exercise, complete the table for each radioactive isotope.

Travka [436]

Answer :

The amount after 1000 years will be, 5.19 grams.

The amount after 10000 years will be, 0.105 grams.

Step-by-step explanation :

Half-life = 1599 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{t_{1/2}}$

$k=\frac{0.693}{1599\text{ years}}$

$k=4.33\times 10^{-4}\text{ years}^{-1}$

Now we have to calculate the amount after 1000 years.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $4.33\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = 1000 years

a = initial amount of the reactant = 8 g

a - x = amount left after decay process = ?

Now put all the given values in above equation, we get

$1000=\frac{2.303}{4.33\times 10^{-4}}\log\frac{8}{a-x}$

$a-x=5.19g$

Thus, the amount after 1000 years will be, 5.19 grams.

Now we have to calculate the amount after 10000 years.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $4.33\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = 10000 years

a = initial amount of the reactant = 8 g

a - x = amount left after decay process = ?

Now put all the given values in above equation, we get

$10000=\frac{2.303}{4.33\times 10^{-4}}\log\frac{8}{a-x}$

$a-x=0.105g$

Thus, the amount after 10000 years will be, 0.105 grams.

4 0

3 years ago

Pls answer this One way to solve an equation or inequality that has both decimals and fractions is to change the

KatRina [158]

Answer:

Turn everything into fractions. You can also combine like terms.

Step-by-step explanation:

5 0

3 years ago

Last year, Gena’s food cart business was $225 in debt. This year, the debt has tripled. Which expressions show how much Gena’s b

NeX [460]

Answer:

B and E

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Two students are running on a circular path. It takes the first student 25 minutes to complete one lap, and it takes the second

Anna11 [10]

The computation shows that the time when they'll meet each other will be 175 minutes.

<h3>How to illustrate the information?</h3>

From the information, it takes the first student 25 minutes to complete one lap, and it takes the second student 35 minutes to complete one lap.

It should be noted that the time when they'll meet each other will be the lowest common multiple of 25 and 35.

This will be 175 minutes.

Learn more about computations on:

brainly.com/question/4658834

#SPJ1

6 0

2 years ago

Please I need Help!!! I need someone to help me do markdown's!!!

marta [7]

Answer:

The retail price is $103.6

Step-by-step explanation:

Markdowns are, to be simple, when the price goes DOWN, so the price would be less than the original rather than more. First, you must calculate what one percent of the original is, which is 1.40. As the markdown is 26 percent, you can do 1.40 x 26 to get how much was marked down, which is $36.40. To find the new price now, you must do the original minus the markdown, or 140 - 36.40 in this case. This gives you $103.6 as the retail price.

I hope this helped! :D

7 0

3 years ago