Question

She all your work pls

Answer 1

1.5 ×
`10^(6)`

Explanation:

using the rule of exponents

`a^(m)` ×
`a^((m+n))`

(7.5 ×
`10^(7)` ) × (2 ×
`10^(-2)` )

= (7.5 × 2 ) × (
`10^(7)` ×
`10^(-2)` )

= 15 ×
`10^((7-2))`

= 15 ×
`10^(5)` ( express 15 in standard form )

= 1.5 ×
`10^(1)` ×
`10^(5)`

= 1.5 ×
`10^((1+5))`

= 1.5 ×
`10^(6)`