Question

1.23 10) (1.4 x10)- 1.72x 10 S/F 1.7 x 10 Divide digit terms and subtract exponents Ex: (8.23 x 10)/ (1.2 x 103) 6.858 x 10 S/F 6.9 x 10 For the following mathematical operations below, calculate the values and round to the poper number of significant figures and use proper scientific notation format. 1. Convert number to Scientific-Notation: 23,000- 2.3 lof 0.000012- 12xlo 2. Convert Scientific-Notation to Number 2560025 456 x 10°1 3. Maliph: (1.27 x 10) x (2.7 x 103%)- 4Diide 9.5 10)-25x 103I 5. Subtracr: 734 x10)-(1.34 x 10)o io 6. Divide(1.76 7. Add io 3 429 3.4x1o 23 (1.76 x 107/-20? --?? Q988 1.7 8.80 x 10)+(6.91 x10 (7.32 10) 14 Nlo ts 8. Subtract. 15.0x 10")-( 1.00 >,XV") ? 9. Divide (1.44 x 100)/ 12,000-

#9

Answer 1

Ans 9 :

(1.44 x 10^-6) / 12000

The smallest number of significant figures in the operation is in 12000 , i.e. two

So the final answer must also have two significant figures.

= (1.44 x 10^-6) / 12000

= (0.00000144) / 12000

= 1.2 x 10^-10