Question

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

Answer 1

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