Answer:
The expression that represents the number of days until only 10% remains is T((d) 10 %) =100×
.
Step-by-step explanation:
The equation for half life is of the form
A = A₀×
.........................................................................(1)
Where
A = Final amount
A₀ = Initial amount
t = Time
h = Half life
For the equation T(d) = 100×2⁽⁻²⁾....................................(2)
We have by comparison with the equation for half life
2 ≡
and and the equation (2) can be written as
Percentage remaining after 2 half lives is
×100=100×
However if the half life of Technetium-99m is 6 hours then we have for one day
×100=100×
Therefore an expression that represents the number of days until only 10% remains is
×100=100×
= 10 %
=
= ㏑
= ㏑(
)
=
×㏑
= ㏑(
)
=
= 3.322
Therefore the expression for the number of days 10 % of Technetium-99m will be remaining is
T((d) 10 %) =100×
<h3>What is 52,437 rounded to the nearest thousand?</h3>
Answer: 52,000
Step-by-step explanation:
We have to look at the number in the hundredth place and if it is less than five we round down, but if it is five or more, we round up.
In this case, since we have 52,437, the number of hundreds is 4, so we have to <u>round down</u>. 52,000.
Answer: Determine if the following side lengths could form a triangle.
Prove your answer with an inequality.
8,17,24
Step-by-step explanation:
Determine if the following side lengths could form a triangle.
Prove your answer with an inequality.
8,17,24
Answer:
the slope is 3 and you can put points on (1,3) and (2,6) to demonstrate this in the graph
Step-by-step explanation:
here are the answers bae. Feel free to ask for more