Using scientific notation, it i found that the result of the expression is given as follows:
C. 974,000.
What is scientific notation?
A number in scientific notation is given by:
[tex]a \times 10^b[/tex]
With the base being [tex]a \in [1, 10)[/tex].
In this problem, to solve the sum, we have to place the numbers in the same base, hence:
[tex]7.4 \times 10^4 + 9 \times 10^5 = 0.74 \times 10^5 + 9 \times 10^5 = 9.74 \times 10^5 = 974000[/tex]
Hence option C is correct.
More can be learned about scientific notation at https://brainly.com/question/16394306
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