Question

Use exponents to write 7.5 million in expanded notation.


please help

Answer 1

7.5 million = 7 500 000
Since you move the decimal to the left 6 times, the last exponent will be to the 6th;
7 500 000
`= 7* 10^(6) +5*10^(5)+0*10^(4)+0*10^(3)+0*10^(2)+0*10^(1)+0*10^(0)`

Answer 2

(7 x 10^6) + (5 x 10^5) + (0 x 10^4) + (0 x 10^3) + (0 x 10^2) + (0 x 10^1)