The combined mass of the two skyscrapers is (2.2*10^5 + 3.7*10^5) tons.
This can be simplified by adding the numbers without the exponents: 2.2 + 3.7 = 5.9.
The exponent remains the same: 10^5.
Therefore, the combined mass is 5.9*10^5 tons.
a skyscraper has a mass of 2.2*10^5tons another in the same town has a mass of 3.7*10^5tons what is the combined mass in tons of the two skyscrapers use scientific notation to express your answer to 1 decimal place
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