Question

Which number is four thousand times larger than 1.1 x 10^3 ?

A) 1.1 x 106
B) 1.1 x 107
C) 4.4 x 106
D) 4.4 x 107

Answer 1

C) 4.4×10⁶

Explanation:

It is convenient to convert 4000 to scientific notation, then do the multiplication in the usual way.

`4000* 1.1\cdot 10^3=4\cdot 10^3*1.1\cdot 10^3=(4\cdot 1.1)\cdot 10^(3+3)\\\\=4.4\cdot 10^6`