Question

Add the following two numbers in scientific notation.

Answer 1

3.31 x 10^4

Step-by-step explanation:

3.111 x 10^4 is 31110

2 x 10^3 is 2000

31110 + 2000 = 33100 or 3.31 x 10^4

Answer 2

b) 3.31 × 10⁴

Step-by-step explanation:

`\sf \rightarrow \left(3.11\cdot 10^4\right)+ \left(2\cdot 10^3\right)`

remove parenthesis

`\rightarrow \sf 3.11\cdot \:10^4+2\cdot \:10^3`

simplify

`\rightarrow \sf 31100+2000`

add the numbers

`\sf \rightarrow 33100`

convert to scientific form

`\sf \rightarrow 3.31 \ x \ 10^4`