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ELEN [110]
2 years ago
14

HELP!!!! CLICK ON THE PICTURE! THANK YOU

Mathematics
1 answer:
zloy xaker [14]2 years ago
7 0
19/25 is the answer 
hope i helped!

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A radioactive substance decays exponentially: The mass at time t is m(t) = m(0)e^kt, where m(0) is the initial mass and k is a n
forsale [732]

Answer:

mean life = 8264.5 s

Step-by-step explanation:

k = - 0.000121

The relation is given by

m = mo e^{kt}

Now, the mean life is the life time for which the sample retains.

The mean life is the reciprocal of the decay constant.  

The relation between the mean life and the decay constant is

\tau =\frac{1}{k}\\\\\tau = \frac{1}{0.000121} = 8264.5 seconds

5 0
3 years ago
46.2 × 10–2 = A. 0.0462 B. 0.462 C. 4.62 D. 462
Reil [10]
46.2*(10-2)
10-2=8
46.2*8=369.6
Your answers listed doesnt follow along the order of pemdas. im not sure how those are the answers for that equation. 
4 0
2 years ago
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pam uses 1 half cup of milk for each milkshake if she makes 18 milk shakes how many cups of milk does she use
Serga [27]
I am not going to give you the answer, but I am going to tell you how to do it. You first put 18 over 1, and multiply that by one half. (You multiply across.)
5 0
3 years ago
What is the answer to 9x-15
iren [92.7K]

Answer:

your answer would be -135

3 0
2 years ago
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You are planting 47 flowers but want them to go into 6 rows . How many flowers will be in each row ?
Darina [25.2K]

Answer:

<u><em /></u>7 flowers with 4 flowers left over

Step-by-step explanation

47÷6

4 0
3 years ago
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