Answer:
The answer is C.) In order to get one kilometer, you have to have 1,000 meters.
Step-by-step explanation:
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A brainliest is always appreciated.
Answer:
120 grams will be left after 180 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 that:
- The initial quantity is 480 g,
- The half-life is 90 years,
- 180 years is the time elapsed.
And we want to find how much will be left. For this we use the above formula.

120 grams will be left after 180 years.
Answer:
The car would have to sell for $20,000
Step-by-step explanation:
The Center Pays<span> $0.002 For </span><span>Each Kilogram</span>
B. 75
First you find the area of the triangle:
(base x height)/2
(3 x 5)/2
15/2
7.5
Then you multiply by the length of the prism (10):
7.5 x 10 = 75