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Aliun [14]
2 years ago
7

One more, one less, ten more, ten less

Mathematics
1 answer:
aleksklad [387]2 years ago
8 0
If you are starting off with zero then your end product would be zero
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A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years.
pogonyaev

Answer:

0.75 mg

Step-by-step explanation:

From the question given above the following data were obtained:

Original amount (N₀) = 1.5 mg

Half-life (t₁/₂) = 6 years

Time (t) = 6 years

Amount remaining (N) =.?

Next, we shall determine the number of half-lives that has elapse. This can be obtained as follow:

Half-life (t₁/₂) = 6 years

Time (t) = 6 years

Number of half-lives (n) =?

n = t / t₁/₂

n = 6/6

n = 1

Finally, we shall determine the amount of the sample remaining after 6 years (i.e 1 half-life) as follow:

Original amount (N₀) = 1.5 mg

Half-life (t₁/₂) = 6 years

Number of half-lives (n) = 1

Amount remaining (N) =.?

N = 1/2ⁿ × N₀

N = 1/2¹ × 1.5

N = 1/2 × 1.5

N = 0.5 × 1.5

N = 0.75 mg

Thus, 0.75 mg of the sample is remaining.

5 0
2 years ago
On a coordinate plane, 2 lines intersect at (negative 1, 5). Which appears to be the solution to the system of equations shown i
Doss [256]
(-1, 5) because if you plug in -1 to both equations, you should get 5 from both equations. They also cross at that point, making that the solution.
4 0
3 years ago
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Which general rule maps triangle ABC into triangle A’B’C’?
Alenkasestr [34]
A sequence of transformations maps triangle ABC into triangle A’B’C
3 0
2 years ago
A bacteria population is growing exponentially with a growth factor of 1/6 each hour. By what growth factor does the population
Nadusha1986 [10]

Answer:

b. √(1/6)

Step-by-step explanation:

--------------------------

6 0
3 years ago
What is 2 1/2 + 5 1/2?
ZanzabumX [31]

Answer:

8

Step-by-step explanation:

add whole numbers first, and then add the fractions

2+5=7

1/2+1/2=1

7+1=8

8

4 0
3 years ago
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