Question

Write 34392.55 in scientific notation. A. 3.439255 × 10−4 B. 3.439255 × 103 C. 3.439255 × 10−3 D. 3.439255 × 104

Answer 1

34392.55 in scientific notation is 3.439255 x 10^4

Step 1: Move the decimal place to the left to create the new number from one to ten.

Step 2: Figure out the exponent. (Which is the number of times you moved the decimal.)

N x 10^a

N = 34392.55

a = 4

So, therefore your answer is 3.439255 x 10^4

Let me know if this helps! Have a nice night!

Answer 2

34392.55

To find this in scientific notation we must move the decimal to the right of the first non-zero number. In this example that number is the "3" on the left.

Now we count how many times the decimal has to pass a number in order to get to the right of that 3. We see that it passes a number 4 times. This means the exponent in your final answer is going to be 4.

This exponent can be positive or negative depending on the number we start with. If the number was large and we moved the decimal to the left then the exponent is positive, if the number was small and we moved the decimal to the right then the exponent is negative. In this case it is positive.

Answer: 3.439255 x 10^4