Answer:
2.5 half-lives
Step-by-step explanation:
Find
in
given 
is the amount after the time
,
`is the initial amount,
is the half-life
We know that after half-life there will be twice less the initial quantity:
.
Simplifying gives 
Plugging this into the initial equation, we obtain that
or 
Finally, just plug in the given values and find the unknown one.
From
, we have that
= 
So you should get: 
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Answer:
theres no photo
Step-by-step explanation:
it looks like its constant but I could be wrong
The altitude of a shape or a polygon can be determined by drawing a perpendicular line from the base to the top most part of the polygon. In this case, the altitude is the segment BC where the ends are on the topmost of the cylinder and the base of the cylinder.
The equation, dividend, is written below,
x³ - 7x - 6
The divisor from the given is x - 4. If we are to convert this to equation, we have x = 4. In order to determine the answer to the question above, that is the remainder for the division operation, we substitute the x's of the dividend with 4.
R = (4)³ - (7)(4) - 6 = 30
The answer is the third choice, 30.