91Ó°ÊÓ

Multiply. $$(4 x-7)(4 x+7)$$

To write the number 0.0000000086 in scientific notation, move the decimal point ______ places to the ______ The exponent on 10 is _____

For Exercises, write in decimal notation. $$2.3 \times 10^{-12}$$

The mass of Earth is \(5,980,000,000,000,000,000,000,000\) kg. Write this number in scientific notation.

The weight of a single \(E\). coli bacterium is 0.000000000000665 g. Write this number in scientific notation.

Archeology The weight of the Great Pyramid of Khufu is estimated to be \(12,000,000,000\) lb. Write this number in scientific notation.

Biologists and physicists are working together to measure the mass of a virus. Currently, a virus with a mass of 0.00000000000000000039 g can be measured. Write this number in scientific notation.

The electric charge on an electron is 0.00000000000000000016 coulomb. Write this number in scientific notation.