Question

What is (1.9 x 10 to the 3rd power) x (2.3 x 10 to the 4th power) ?
A.4.2 x 10 to the 7th power


B.4.37 x 10 to the 7th power


C.4.2 x 10 to the 12th power


D.4.37 x 10 to the 12th power

Answer 1

@KJSaif

Answer 2

@mathmate

Answer 3

@Ms-Brains

Answer 4

I have no idea what to do at all

Answer 5

Use rules of exponents:
\((a\times 10^x)(b\times 10^y)=ab\times 10^{x+y}\)