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PtichkaEL [24]
3 years ago
13

I ned help on homework pls help

Mathematics
1 answer:
zmey [24]3 years ago
4 0

Answer:

Step-by-step explanation:

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Plutonium-240 decays according to the function Q(t) = Qoe^-kt
LuckyWell [14K]

Answer:

  9990 years

Step-by-step explanation:

The exponential function with given values filled in can be solved for the unknown using logarithms.

__

  Q(t) = 12 = 36e^(-0.00011t)

  1/3 = e^(-0.00011t) . . . . . . divide by 36

  ln(1/3) = -0.00011t . . . . . . take natural logs

  t = ln(1/3)/(-0.00011) . . . . divide by the coefficient of t

  t ≈ 9990 . . . years

5 0
2 years ago
Is anyone able to explain how the answer is D?
noname [10]

Answer:

Step-by-step explanation:

There is theorem in this chapter which explains the answer

According to the theorem ,

/_rbd = 2 /_ rad

Therefore , rbd = 34 ° .

Hence , rad = 2x 34

Therefore , rad = 68°

3 0
3 years ago
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15 less than twice a number is less than or equal to -23. Into an equation
Dafna1 [17]
I hope it’s correct!

4 0
3 years ago
Find the Least Common Denominator of the fractions: 6/7 and 2/3
serg [7]

Answer:

The least common denominator is 21

Step-by-step explanation:

3 & 7 equal 21 which is the least common factor that it equals

7 0
3 years ago
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What is the decimal equivalent of 5 over 9?<br><br> 0.5 bar<br> 0.6 bar<br> 0.8 bar<br> 0.9 bar
igomit [66]

Answer:

0.5 bar

Step-by-step explanation:

:)

5 0
3 years ago
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