What is the scientific notation for 74 million

Question

A question for my homework 

Answer 1

Hi Kendrell,

 

Let's begin by writing the number 74 million out normally:

    74 million = 74,000,000

 

We can express this same number in scientific notation as a single digit whole number and its decimal portion times a power of 10:

    74,000,000 = 7.4 x 10⁷ (scientific notation)

 

Since we moved the decimal point 7 places to the left, this means the exponent (power) of 10 will be equivalent to the number of places we moved the decimal point (7).

 

Thanks for submitting this problem and glad to help.

 

God bless, Jordan.

Answer 2

74 million = 74,000,000

 

There are six zeros, so that equates to 10⁶.  The first number must be one or greater and less than 10; so we change 74 to 7.4*10.

 

74 million = 7.4*10*10⁶ = 7.4*10⁷

Answer 3

74,000,000

7.4 x 10⁷

 

Notice the decimal point moved 7 places to the left. The exponent on 10 is also 7.