Question

Multiply:
12.1×10 ^4 .
a. 1,210
b. 121,000
c. 1,210,000
d. I don't know.

Answer 1

To multiply numbers in scientific notation, multiply the decimal parts and add the exponent parts. The final answer is obtained by multiplying 12.1 by 10 raised to the power of 4.

Step-by-step explanation:

To multiply the numbers in scientific notation, we need to multiply the decimal part (mantissas) and add the exponent part (powers of 10). In this case, we have 12.1 × 10^4. Multiplying the decimal parts, 12.1 × 1 gives us 12.1. And adding the exponent parts, 4 + 0 equals 4. So the final answer is 12.1 × 10^4.