Find the value of and express it in scientific notation with the correct number of…

PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

Find the value of

\dfrac{3.45\times10^{2}+6.7\times10^{1}}{4.8}

and express it in scientific notation with the correct number of significant figures. (a)

8.58\times10^{1}

(b)

2.1\times10^{2}

(c)

8.6\times10^{1}

(d)

8.8\times10^{1}