Four: All the digits given are significant.
>> Two actually. Trailing zeros in a number without a dp are not significant unless emphasised in some way. The unit (mm) doesn't make any difference.
All four of the digits in 1.230 are significant.
All four digits are significant - unless the zero at the end is written simply for fun.
3 of them.
4 of them.
Three
Three
Non-zero digits are always significant, so the number 12 has two significant figures.
3 significant figures. (The zero after the 5 doesn't count.) 4 significant figures if the zero after the 5 does count. A good way of expressing three thousand four hundred fifty with three, four, or five significant figures is with scientific notation: 3.45 * 103 3.450 * 103 3.4500 * 103
Significant figures are used to receive a more accurate number. To obtain the number you you multiply or divide the quantities, leave as many significant figures in the answer as there are in the quantity with the least number or significant figures. If adding or subtracting quantities, leave the same number of decimal places in the answer as there are in the quantity with the least number of decimal places
You cannot round off a number to 3 significant figures when it already has more than 3 significant figures. The number 10074 has 5 significant figures (1, 0, 0, 7 and 4). If the number were really 1.0074, then it could be rounded off to 3 significant figures: 1.01.
It is 124.68 rounded to 5 significant figures
They can be 1230 or 0.0123
5 significant figures.
How many significant figures are in the measurement 210 cm?
12.655 cm rounded to four significant figures is 12.66cm
There are 4 significant figures in this number.
There are 2 significant figures in this measurement.
All three of them are significant figures
4.05 has three (3) significant figures
None. The abbreviation cm represents one or more centimeters. In your question there are no numbers associated with the cm unit, therefore there are no significant figures.
Two significant figures, 6 and 7.
There are 3 significant figures
3 of them.