Answer:
10
Step-by-step explanation:
After 200 years, 9.84 grams of Cesium would remain.
Let N represent the amount of substance after t years
The half-life of a cesium is 30 years., hence, this can be represented by exponential function:

where a is the initial value and b is the multiplier.
There were initially 1000g of the substance
a) The exponential model for this situation is:

b) After 200 years (t = 200), the amount of Cesium remaining is:

Hence after 200 years, 9.84 grams of Cesium would remain
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Answer:
8=7t
Step-by-step explanation:
The table given shows that both variables are directly proportional to each other. That is, as s variable increases, y variable also increases.
Equation to represent this direct proportion would be:
8=kt,
where, k = constant of proportionality.
Let's find k from the table given.
Let's use any pair values of of s and t given in the table. Say, s = 21, t = 3
8=kt
21=k3
Divide both sides by 3
21/3= k3/3
7=k
k=7
Plug in k = 3 into :
8=7t
Hope this work!
Brainliest plz
Below are the choices that can be found elsewhere:
a. 28,000
b. 43,750
c. 63,000
<span>d. 78,750
</span>
If they are living on $35,000 per year, the their pre-retirement income is <span>43,750. Its B.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
</span>
Answer:
826
Step-by-step explanation:
82.6 x 10 to the power of 2 :
8.26 * 10^2
8.26 * (10 * 10)
8.26 * (100)
= 826