Answer:
$81.03
Step-by-step explanation:
Given
--- annually
--- time
--- rate
---- Present value
Required
The future value
This is calculated as:
This gives:
<em>The future value to the nearest cent is: $81.03</em>
The answer would be C and D; the squares will be the base of the pyramid as the triangles are placed on each of the square’s sides to compose the 3D square pyramid
The answer is 25%
(1)
If 64 is 100%, 48 is how much percent:
64 : 100% = 48 : x
x = 100% * 48 : 64
x = 75
(2)
Percent of decrease is:
100% - x = 100% - 75% = 25%
Answer:
22.38 g of silicone-32 will be present in 300 years.
Step-by-step explanation:
A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by
where,
= quantity of the substance remaining
= initial quantity of the substance
= time elapsed
= half life of the substance
From the information given we know:
- The initial quantity of silicone-32 is 30 g.
- The time elapsed is 300 years.
- The half life of silicone-32 is 710 years.
So, to find the quantity of silicone-32 remaining we apply the above equation
22.38 g of silicone-32 will be present in 300 years.
I have no idea I’m answering this because I need to ask more questions