Question

Express the following numbers in usual form. ( a ) 7.89 × 10^5 ( b ) 47.5 × 10^-7​

Answer 1

Answer:

a)Soln;

${10}^{5} = 100000$

$= 7.89 \times 100000$

$= 789000$

b)Soln;

$= 47.5 \times \frac{1}{ {10}^{7} }$

$= \frac{47.5}{10 {}^{7} }$

$= \frac{47.5}{10000000}$

=0.00000475

Hope it helps !!!