Answer:
The answer is 4
Step-by-step explanation:
2² = 2 × 2
= 4
(Correct me if i am wrong)
Answer:
Approximately 76.5 mg.
Step-by-step explanation:
Given,
The initial quantity of the Bismuth-210, P = 233 mg,
Also, the rate of decay per day, r = 13 %
Thus, the quantity of the Bismuth-210 after 8 days would be,
1.304 x 10⁰ = 1.304 x 1 = 1.304
1.304 x 10¹ = 1.304 x 10 = 13.04
1.304 x 10² = 1.304 x 100 = 130.4
1.304 x 10³ = 1.304 x 1,000 = 1,304
1.304 x 10⁴ = 1.304 x 10,000 = 13,040
1.304 x 10⁵ = 1.304 x 100,000 = 130,400
1.304 x 10⁶ = 1.304 x 1,000,000 = 1,304,000
1.304 x 10⁷ = 1.304 x 10,000,000 = 13,040,000
1.304 x 10⁸ = 1.304 x 100,000,000 = 130,400,000
* 1.304 x 10⁹ = 1.304 x 1,000,000,000 = 1,304,000,000 *
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ANSWER:
1.304 x 10⁹ = 1.304 x 1 Billion
Since we know the person in the problem has been working for 24 years, and 1/2 of his life, we can conclude that the man is 48 years old. This is because if half of the mans life was 24 years, we have to multiply the number by 2. The correct answer is 48.
