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The given circumference of Earth is 40780 km. Express it in standard exponential notation after rounding it to two significant figures.
What is the sign of the exponent when the number 0.00841 is expressed in scientific notation?
Scientific notation should always be written using a number with a decimal point. Is this statement true or false?
True or False: In scientific notation, a positive exponent means the number is less than 1, while a negative exponent means the number is greater than 1.
Which of the following is a reason why it is important to use scientific notation in calculations?
