Question

(4.3 * 10-3)(2 x 10-2)​

Answer 1

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➷
`(4.3\cdot10-3)(2\cdot 10-2)`

➷
`= (43 - 3)((2) (10) -2)`

➷
`= 40 ((2) (10)-2)`

➷
`= 40(20 - 2)`

➷
`= (40)(18)`

➷
`= 720`

✽

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Answer 2

Given expression:

(4.3 x
`10^(-3)`) (2 x
`10^(-2)`)

Solving this equation,

(4.3 x
`10^(-3)`) (2 x
`10^(-2)`) = 4.3 x
`10^(-3)` x 2 x
`10^(-2)`

= (4.3 x 2) x 10⁻³ x 10⁻²

= 8.6 x 10⁻³ ⁺⁽⁻²⁾

= 8.6 x 10⁻⁵

The solution of this problem is 8.6 x 10⁻⁵