Answer :
To evaluate the expression
[tex]$$5.78 \times 10^5 + 1.69 \times 10^5,$$[/tex]
we notice that both terms have the same exponent, [tex]$10^5$[/tex]. This means we can add the coefficients directly.
1. Write the expression with the common factor:
[tex]$$5.78 \times 10^5 + 1.69 \times 10^5 = (5.78 + 1.69) \times 10^5.$$[/tex]
2. Add the coefficients:
[tex]$$5.78 + 1.69 = 7.47.$$[/tex]
3. Therefore, the sum in scientific notation is:
[tex]$$7.47 \times 10^5.$$[/tex]
Thus, the final answer is:
[tex]$$7.47 \times 10^5.$$[/tex]
[tex]$$5.78 \times 10^5 + 1.69 \times 10^5,$$[/tex]
we notice that both terms have the same exponent, [tex]$10^5$[/tex]. This means we can add the coefficients directly.
1. Write the expression with the common factor:
[tex]$$5.78 \times 10^5 + 1.69 \times 10^5 = (5.78 + 1.69) \times 10^5.$$[/tex]
2. Add the coefficients:
[tex]$$5.78 + 1.69 = 7.47.$$[/tex]
3. Therefore, the sum in scientific notation is:
[tex]$$7.47 \times 10^5.$$[/tex]
Thus, the final answer is:
[tex]$$7.47 \times 10^5.$$[/tex]
