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Roman55 [17]
3 years ago
7

If both dimensions in a parallelogram are doubled then which statements about its area will be true

Mathematics
1 answer:
valentina_108 [34]3 years ago
3 0
Well as you can see my guy this is obviously 69999 because I said so
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The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 1000 years?
adell [148]

Answer: 129.33 g

Step-by-step explanation:

$$Let $p=A \cdot e^{n t}$ \\$(p=$ present amount, $A=$ initial amount, $n=$ decay rate, $t=$ time)

\begin{aligned}&\Rightarrow \text { Given } p=\frac{A}{2} \ a t  \ t=1590 \\&\Rightarrow \frac{1}{2}=e^{1590n} \Rightarrow n=\frac{\ln (1 / 2)}{1590}=-0.00043594162\end{aligned}

$$If $A=200 \mathrm{mg}$ and $t=1000$ then,$$\begin{aligned}P &=200 e^{\left(\frac{\ln \left(1/2\right)}{1590}\right) \cdot 1000} \text \\\\&=129.33 \text { grams}\end{aligned}$$

3 0
2 years ago
How are expressions 1/4 of 12 and 12 divided by 4
Radda [10]
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8 0
3 years ago
Which fraction is equivalent to negative 7 over 8 ? (1 point)
Alja [10]
The answer is -7/8\= 7/-8 Thank you!
6 0
3 years ago
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If AJKL: ABCA, which statement must be true?
Oksana_A [137]

Answer:CACA

CACA

Step-by-step explanation:

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8 0
3 years ago
Given an=n^3-2n what is a3<br><br> please don't attach file!!!!
sineoko [7]

Answer:

21

Step-by-step explanation:

Try using this notation:  a(n)     and not    an.

an=n^3-2n becomes    a(n) = n^3 - 2n.

Then a(1) = 1^3 - 2(1) = 1 - 2 = -1

         a(2) = 2^3 - 2(2) = 8 - 4 = 4

         a(3) = 3^3 - 2(3) = 27 - 6 = 21

5 0
3 years ago
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