Question

The result of (6.2 × 104) x (3.3 × 102) expressed in scientific notation?

Answer 1

$(6.2\times10^4)\times(3.3\times10^2)\\\\use\\commutative\ property:a\times b=b\times a\\and\\associative\ property:(a\times b)\times c=a\times(b\times c)\\\\(6.2\times3.3)\times(10^4\times10^2)\\\\use\ a^n\times a^m=a^{n+m}\\\\20.46\times10^{4+2}=20.46\times10^6-it's\ not\ scientific\ notation\\\\2\underbrace{0.}_{\leftarrow1}46\times10^6=\huge\boxed{2.046\times10^{6+1}=2.0646\times10^7}$