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2 years ago

10

after a concert for 1600 people only 8 people said that they wouldnt go see the concert again what percent of people said that t

hey wouldnt go back to the band again ?

1 answer:

Svet_ta [14]2 years ago

4 0

The answer is 128%. 128% of people would go back to the concert again.

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Plutonium-240 decays according to the function L where o

PIT_PIT [208]

Answer:

$\boxed{\textbf{1700 yr}}$

Step-by-step explanation:

$-\dfrac{\text{d}L}{\text{d}t} = kL\\\\\dfrac{dL}{L}=-kdt\\\\\ln L = -kt + C\\\text{At t = 0, L = L$_{0}$, so C = $\ln L_{0}$}\\\ln L = -kt + \ln L_{0}\\\ln L_{0} - \ln L = kt\\\\\ln \dfrac{L_{0}}{L} =kt$

Data:

L₀ = 24 g

L = 20 g

k = 0.000 11 yr⁻¹

Calculation:

$\ln \dfrac{24}{20} =0.000 11t\\\\\ln 1.2 = 0.000 11t\\\\0.1823 = 0.000 11t\\\\t = \dfrac{0.1823}{0.000 11} = \textbf{1700 yr}\\\\\text{It will take } \boxed{\textbf{1700 yr}}\text{ for the polonium to decay to 20 g}$

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3 years ago

(8.75-2.16)÷7.1+(4.5+1.3)÷4.3

kirill [66]

Answer:

2.27700622339

Step-by-step explanation:

Calculated your welcome

7 0

2 years ago

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Find the perimeter of the figure below. Notice that one side length is not given.

sasho [114]

Answer:

58cm

Step-by-step explanation:

15+14+5+8+6=48

missing side = 15-5 =10

48+10=58

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2 years ago

A random number generator app on your phone generates two numbers between 0 and 8. What is the probability that the first number

aev [14]

Answer:

1/27

Step-by-step explanation:

There are 9 numbers between 0 and 8. 3 of them are less than 3 (0, 1, and 2), and 1 of them is 6.

The probability is therefore (3/9) (1/9) = 1/27.

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2 years ago

Find the midpoint of the segment with the given endpoints K(-2,-4) and L(-4,6)

Ilia_Sergeevich [38]

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3 years ago

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