Which shows the expression below simplified?

(3.6 × 1015) + (1.8 × 1012)


a. 3.60018 × 1015
b. 3.902 × 1014
c. 3.618 × 1015
d. 3.6018 × 1015

Punch the numbers into your calculator and check the answer.

Sorry!

Which shows the expression below simplified?
(3.6 × 1015) + (1.8 × 1012)

a. 3.60018 × 10^15
b. 3.902 × 10^14
c. 3.618 × 10^15
d. 3.6018 × 10^15

To simplify the given expression, we need to perform addition of the two numbers in scientific notation.

The expression is:
(3.6 × 10^15) + (1.8 × 10^12)

To add these numbers, we need to make sure that the exponents are the same. Since we have 15 and 12 as exponents, we can rewrite the expression as:

(3.6 × 10^15) + (0.018 × 10^15)

Now that the exponents are the same, we can add the coefficients:

3.6 + 0.018 = 3.618

Finally, we multiply the sum by the common exponent of 10^15:

3.618 × 10^15

So, the simplified expression is 3.618 × 10^15.

Therefore, the correct answer is c. 3.618 × 10^15.