The sum is: 1333 km
1333 km
5.2
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
No, counting numbers you can ignore or say they have an infinate number of significant digits. By counting numbers I mean things you count, or non measurements, or numbers you wouldn't round to significant digits anyway . Measurements always have significant digits.
It has 4 significant figures.0.007080 has four significant digits.
Significant digits are digits that provide useful information, for instance 123 has 3 significant digits and 30010 has 4 significant digits. So basically zeros aren't significant unless they are between two other numbers. 0.1020 has only 4 significant digits. A+: 4
12.7
4,777 km
The product is 11 mm
4 of them.
26.0
Four significant digits in 50.00.
5.2
4.0 x 10-2 * 8.1 x 102 = 32.4 2 significant digits, so the answer is 32.
9L
all non zero digits are significant .2.zeroes betweenother significant.
8 L
What number are you talking about? Assume that all non-zero digits in a number are significant unless the zero is between two significant digits. For example, 0.00043 has two significant digits, 4 and 3. However, 0.00403 has three significant digits, 4, 0, and 3. The same goes for large numbers. 01,350,000 has three sig. digits: 1, 3, and 5. Be careful, though. If there is a decimal in the number, everything after the decimal is significant as well. For example, all eight digits in 45,000.000 are significant.