Question

c) Subtract 1.5 x 10^-3 from 4.8 x 10^4 with due regard to significant figures.Please solve this question in detail in a page right now help me please do not write direct
answer

Answer 1

Explanation:

its simple as 1.5*10^-3 is negligible as compare to 4.8×10^4 so ans will 4.8×10^4

Answer 2

Explanation:

Given

1.5 x 10^{-3}

4.8 x 10^{4}

To find

Subtract : 15 * 10^{-3} \ from\ 4.8 \ *\ 10^{4}

Solution

4.3\ * \ 10^{4} \ -\ 1.5 \ *\ 10^{-3}\\ =\ 43\ *\ 10^{3}-\ 0.0015\\ =\ 43000-\ 0.0015\\=\ 47999.99\\=\ 47.9\ *\ 10^{3}

Therefore \ 47.9\ *\ 10^{3} is the answer