2. Do the calculation below and round off your answer to the correct number of s

Question

2. Do the calculation below and round off your answer to the correct number of significant figures: 26.72 +2.4- 3. Convert 52.3 millimeters into meters. Cross out all the units that cancel out. Write your answer in the standard format and using scientific notation. 52.3 mm × -m = (standard format) (scientific notation) 4. Convert 33.4 gallons into microliters. Cross out all the units that cancel out. 33.4 gal × × gal 5. Convert 65 miles per hour into m/sec. hr min mi mi min sec sec 6. Which of the following is the correct use of a metric prefix to write 5.8x103 g without the use of scientific notation: a)5.8x10-3 mg b) 5.8 kg c) 5.8 mg d) 5.8×103 mg e)5.8 g

Explanation / Answer

2) 26.72 + 2.4 = 29.12

3) since 1 mm = 10^-3 m so , 52.3mm = 52.3 mm x 10^-3 m / 1 mm = 0.0523 m = 5.2 x 10^-2 m

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