It is ten.
It is: 7.0*10-9 when in scientific notation
It is not. "Scientific notation" uses a base of 10. The correct notation would be 1.251 x 10^8
No. 35 is exponential notation, (3 is the base of the exponent 5), but in scientific notation the base must be 10 and the exponent must be an integer. 100.1 is exponential notation but not sci. notation.
Something that is a billion starts with base 109. Therefore, the term in scientific notation is 7.0 x109
10 is the base in this case.
Scientists have developed a shorter method to express very large numbers. This method is called scientific notation. Scientific Notation is based on powers of the base number 10.The number 123,000,000,000 in scientific notation is written as :
Shift a decimal place to the right, so the exponent for base 10 is -1. Then, the term in scientific notation is: 3.456789 x 10-1
Scientific notation
It's probably in base ten because we use base ten for all our OTHER work in numbers as well. We learn to write numbers in base ten when in elementary school, and use base ten throughout our lives even if we aren't scientists or mathematicians or students or professionals who need to use scientific notation. So keeping scientific notation in base ten makes it easier for everyone to learn and read.
Something that is a trillion starts off with this base 1012. Therefore, 3.65 trillion is 3.65 x 1012 in scientific notation.
Shift a decimal place to the left, so the exponent for base 10 is 1. Hence, the term in scientific notation is: 4.5668 x 10
Move 2 decimal places from the starting position [so the exponent of base 10 is 2.]. Then, the term in scientific notation is: 1.569 x 102