Question

The Empire State Building weighs about 7.3 x 10^8pounds. The One World Trade Center building weighs about 88,200,000 pounds. What is the total weight, in pounds, of these two buildings? Expressing your answer in scientific notation in the form a X 10^b what are the values of a and b?

Answer 1

the empire state building weighs 7.3 x 10^8 pounds

The one world trade centre building weighs about 88200, 000 pounds or 0.8 x 10^8 pounds

sum up the weighs

7.3 x 10^8 + 0.8 x 10^8

8.1 x 10^8

so the value of a is 8.1 and the value of b is 8.