Answer:
255,300
Step-by-step explanation:
3.33×10^4=33,300. Then 2.22×10^5=222,000. Now add 33,300 plus 222,000 which is 255,300
(3.33 X 10^4 km) + (2.22 X 10^5 km)
First multiply the exponent with the given decimal number
Now we add both the numbers
Now write the answer into scientific notation
Move the decimal point after 2. we move 5 places to the left
So it becomes
y=-7
hope this helps you