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Q: Express the sum of 4444 km and 333 km using the correct number of significant digits?

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12.7

1333 km

it would be 11mm

The sum is: 1333 km

The product is 11 mm

26.0

4 of them.

Four significant digits in 50.00.

5.2

7.2mm

9L

24.305 grams/mole Magnesium X 5 moles = 121.525 grams. The correct number of significant digits depends on the values given in the question. Since there was only one value (5), and it refers to a perfect integer amount (5 moles). The question of the correct number of significant digits is undefined and depends entirely on the number of significant digits available for the Atomic Mass of Magnesium. Since there are 5 significant digits in the Atomic mass used, the answer would be correctly stated as 121.53 grams to 5 significant digits.

4.0 x 10-2 * 8.1 x 102 = 32.4 2 significant digits, so the answer is 32.

The number of significant digits is here six.

8 L

all non zero digits are significant .2.zeroes betweenother significant.

There are 2 significant digits in the number.

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.

Three significant digits.

This number has seven significant digits.

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

All four of the digits given are significant digits.

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

No.

There are two significant digits in the number 83.