Which shows the expression below simplified?
(3.6 × 10^15) + (1.8 × 10^12)
a. 3.60018 × 10^15
b. 3.902 × 10^14
c. 3.618 × 10^15
d. 3.6018 × 10^15
To the correct significant digits, none of the answers. For the life of me, I don't understand your teacher on this.
change both to the same power:
3.6E15=3600E12 Now add, or 3601.8E12
or 3.6018E15.
However, using scientific notation,
3.6E15 is not 3600E12 because of the zeroes being added. Only significant digits can be displayed in the digits portion.
35m=_________km
scientific notation
78,990
D is the correct answer. Convert to 10^15 and then add. Significant digits for addition key on the decimal point location, so 3.6018 x 10^15 is correct.
To simplify the expression (3.6 × 10^15) + (1.8 × 10^12), you need to add the numbers separately and then express the result in scientific notation.
First, add the numbers:
3.6 × 10^15 + 1.8 × 10^12 = 3.6 × 10^15 + 0.0000000018 × 10^15 (by converting 1.8 × 10^12 to scientific notation)
Now, in order to add these numbers, we need to have the same power of 10. Since both numbers have a power of 10^15, we can add them together.
3.6 × 10^15 + 0.0000000018 × 10^15 = 3.6000000018 × 10^15
However, for simplicity, we can round the number to fewer decimal places and just focus on the significant digits:
3.6000000018 can be simplified to 3.6
Therefore, the simplified expression is 3.6 × 10^15.
So, the correct answer is a. 3.60018 × 10^15.