Whats 4+5
LOL.

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

The value of cos 30° is the same as which of the following?

What is the absolute value of the complex number -4- 2 v14 3.15 14 18