Question

HOW DO YOU DO SCIENTIFIC NOTATION. FIRST PERSON TO TELL ME GET"S A MEDALLLLLLL!!!!!

Answer 1

I really need help

Answer 2

In scientific notation, 2,890,000,000 becomes 2.89 x 109. How?

Remember that any whole number can be written with a decimal point. For example: 2,890,000,000 = 2,890,000,000.0
Now, move the decimal place until you have a number between 1 and 10. If you keep moving the decimal point to the left in 2,890,000,000 you will get 2.89.
Next, count how many places you moved the decimal point. You had to move it 9 places to the left to change 2,890,000,000 to 2.89. You can show that you moved it 9 places to the left by noting that the number should be multiplied by 109.
2.89 x 109 = 2.89 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10
2.89 x 109 = 2,890,000,000
Scientific notation can be used to turn 0.0000073 into 7.3 x 10-6.

First, move the decimal place until you have a number between 1 and 10. If you keep moving the decimal point to the right in 0.0000073 you will get 7.3.
Next, count how many places you moved the decimal point. You had to move it 6 places to the right to change 0.0000073 to 7.3. You can show that you moved it 6 places to the right by noting that the number should be multiplied by 10-6.