A birthday party host expected 20 people, but only 17 attended. What is the percent error?
1 answer:
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Answer:
2, 3
1.01, 1
Percentage uncertainty
Step-by-step explanation:
a) The significant figures in the number 99 is 2
The significant figures in the number 100 is 3
b) Uncertainty in each of the numbers for both the numbers is 1
Percentage uncertainty
99
Percentage uncertainty = 1.01
100
Percentage uncertainty = 1
c) Percentage uncertainty is a better way to express the numbers as the significant figures do not show the actual value of the numbers.
Answer:
C. 125
Step-by-step explanation:
Given:
Bacteria on day 1 = 5
On day 2, each bacteria got split into 5.
So, number of bacteria on day 2 =
Now, again on day 3, each of the 25 bacteria got split into additional 5 bacteria.
So, number of of bacteria on day 3 =
Therefore, the population of bacteria on day 3 is 125.
(4/9)/16 = 4/(9*16) = 4/(4*4*9) = 1/(4*9) = 1/36
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