Answer:
c is the answer
Step-by-step explanation:
solution




therefore the equation is not true
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Answer:
14,146 years
Step-by-step explanation:
The annual multiplier is (1 -0.0049%) = 0.999951. We want to find the number of times this needs to be multiplied to make the product 1/2.
0.5 = 0.999951^t
log(0.5) = t·log(0.999951)
log(0.5)/log(0.999951) = t ≈ 14,145.514
The half-life is about 14,146 years.
Given:
The two points are (0, -2) and (9, 10).
To find:
The distance between the given points.
Solution:
Distance between the two points is

Using the above distance formula, the distance between given points is



On further simplification, we get



Therefore, the distance between the given points (0,-2) and (9,10) is 15 units.