Question

Please help me on number 10!!

Answer 1

1.9 ×
`10^(7)`

Explanation:

To calculate the population in New York we require to multiply

7600 × 2.5 ×
`10^(3)` ← express 7600 in scientific notation

= 7.6 ×
`10^(3)` × 2.5 ×
`10^(3)`

= (7.6 × 2.5) ×
`10^((3+3))`

= 19 ×
`10^(6)` ← express 19 in scientific notation

= 1.9 ×
`10^(1)` ×
`10^(6)`

= 1.9 ×
`10^((1+6))`

= 1.9 ×
`10^(7)`