What is 0.0000087 in scientific notation?

Answer 1

Scientific notation needs to be written as 5.4x104

The lead number needs to be greater than 1, but less than ten. In this case, it is 5.4. The exponent tells me how many times I need to shift my decimal point to get my big, or in your case, a small number. For my example, I would have 54,000

For yours, it is a small number. Shift the decimal point 6 spots to the right, so you have 8.7, which is between 1 and ten. 8.7x10-6 would be correct.

Answer 2

h

Answer 3

4x56

Answer 4

8.7