Answer:
Step-by-step explanation:
Note that the half life is 22 years, and that 50% of the original amount is left after that number of years. 88 years is 4 times the half life, and so the amount left after 4(22), or 88, years is 6.25%. Note that the Pb-210 continues to decay.
Answer:
330
Step-by-step explanation:
Answer:
16, 18, 20
Step-by-step explanation:
We can estimate that the square of the middle integer will be about 1/3 of 980. Then the middle integer is about ...
√(980/3) ≈ 18.09
The integers are 16, 18, 20.
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<em>Check</em>
16^2 +18^2 +20^2 = 256 +324 +400 = 980
Answer:
YNW MELLY
Step-by-step explanation:YNW MELLY
The nearest hundred will be in the hundredth place
For example, 2000
2 is in the thousands, followed by hundreds, ten, ones
to round to the nearest hundreds, you must look at the tens place (in this case 7) IF it is 5 or higher round the hundreds 1 number higher (+1) If it is 4 or lower, round all of the numbers including the number you are looking at to zero without changing the one in front of it.
So in this case 678 will equal 700
Example: if it were 644, then it would be 600
hope this helps