The radius of the Earth's orbit is 45,000,000 meters. What is the number in scientific Notation?
a 4.5 x 10^-7
b 4.5 x 10^7
c 45 x 10^-6
d 45 x 10^6
The number in scientific notation is:
B) 4.5 x 10^7
To convert the given number to scientific notation, we need to write it in the form of a x 10^b, where "a" is a number between 1 and 10, and "b" is an exponent.
The radius of the Earth's orbit is given as 45,000,000 meters. To convert this to scientific notation, we move the decimal point to the left by counting the number of digits it was moved. In this case, we move it 7 places to the left.
Therefore, the correct scientific notation for the given radius is:
b) 4.5 x 10^7
To convert the given value to scientific notation, we need to express it as a number between 1 and 10 multiplied by a power of 10.
The radius of the Earth's orbit is 45,000,000 meters. To express this in scientific notation, we need to move the decimal point to the left until we have a number between 1 and 10. We count the number of places we moved the decimal point and use that as the exponent of 10.
In this case, we need to move the decimal point 7 places to the left to get 4.5. Therefore, the scientific notation for the radius of the Earth's orbit is 4.5 x 10^7.
So, the correct answer is option b) 4.5 x 10^7.