rk1100 rk1100 01-02-2021 Physics contestada Write 4,007,500,000 in scientific notation. 4.0075 x 10 -9 (-9 is an exponent) 4.075 x 10 9 (9 is an exponent) 4007.5 x 10 6 (6 is an exponent) 4.0075 x 10 9 (9 is an exponent)