Scientific Notation -standard Form

The Earth's circumference is approximately 40,000,000 meters. This can also be expressed as 4 X 10^7 meters in scientific notation.

Scientific Notation: to Standard Form/ Decimal Notation:
move the decimal separator point the required amount n spaces, to make the number's value within a desired range, between 1 and 10 for standard notation.
If the decimal was moved to the left, a x 10n ;
to the right, x 10-n.

The statement is true because the Earth's mass is indeed approximately 5,973,600,000,000,000,000,000,000 kg, which can be expressed in scientific notation as 5.9736 x 10^24 kg.

The given number is 0.0000056, which can be written in scientific notation as 5.6 x 10^-6. This is because the decimal point is moved 6 places to the right, resulting in a coefficient of 5.6, and the exponent is negative since the original number is less than 1.

Scientific notation expresses numbers as a coefficient between 1 and 10 multiplied by a power of 10. This simplifies very large or small numbers. For example, 3,000,000 can be written as 3 x 10⁶. The coefficient is 3, and the power of 10 indicates how many places the decimal moves. A positive exponent (like 6) means a large number; a negative exponent would indicate a very small number.

The correct answer choices are all written in scientific notation, which is a way to express very large or very small numbers using powers of 10. In scientific notation, a number is written as a coefficient multiplied by 10 raised to a power. For example, 5.36 x 10^5 means 5.36 multiplied by 10 raised to the power of 5. The other answer choices that are also in scientific notation follow the same pattern, with a coefficient and a power of 10.