A dinosaur fossil is 95,550,000 years old. How can you express this age in scientific notation with the highest level of precision/
A: 9.355 x 10^7 *********
B: 9 x 10^7
C: 9.36 x 10^7
D: 9.3 x 10^7
Is my answer (A) Correct? I found this question a bit confusing so I may be wrong....
Is there a typo in the problem? The problem has 95...and the answers have 9.3.... Choice A does show the most precision.
it seems correct ... the problem numbers and the answer numbers don't jibe
To express the age of the dinosaur fossil in scientific notation with the highest level of precision, you need to round the number to the appropriate number of significant figures. Since the original number, 95,550,000, has six significant figures, you need to round the number to six significant figures as well.
Looking at the answers provided:
A: 9.355 x 10^7
B: 9 x 10^7
C: 9.36 x 10^7
D: 9.3 x 10^7
The correct answer is C: 9.36 x 10^7.
Explanation: When rounding to six significant figures, you should round the number to 9.355, as the digit after the third decimal place (in this case, 5) determines whether to round up or down. Since 5 is greater than or equal to 5, you round up the third decimal place to 6. Therefore, the correct number is 9.36. The exponential part remains the same, which is 10^7.
So, your answer (A) is incorrect. The correct answer is (C).