Write 900 million in scientific notation.

9 × 10^8

Step-by-step explanation:

Scientific notation is a when numbers that are too big or small are expressed in a convenient manner by writing them in decimal form.

Scientific notation is usually used by mathematicians, and engineers, to simplify arithmetic operations. It I written as : a × 10^n i.e a times 10 raise to the power of n.

900 million= 900,000,000

Note that a = 9 and n= 8

900 million= 900000000 = 9×10^8.

its 4 because 2 times 2 is 4, if you double the number two you get four