Question

Work out (5 x 10^3) x (9 x 10^7) give answer in standard form

Answer 1

Answer:

45×10^12 is the answer as 9×5=45 and in multiplicitation power adds up

Answer 2

Answer:

to express in standard form

we need to get the resultant answer between 0 to 9

Step-by-step explanation:

So,

45× 10^10

but 45 is not in between 0-9

hence multiply and divide with 10

4.5×10^11

hope it helps