Which of the following is written correctly in scientific notation?(1 point)
Responses
1.5+106
1 point 5 plus 10 to the 6th power
15×106
15 times 10 to the 6th power
1.5×106
1 point 5 times 10 to the 6th power
1.5×106.1
1 point 5 times 10 raised to the 6 point 1 power
1.5×106
The correct answer written in scientific notation is: 1.5×106
The correct answer in scientific notation is 1.5 × 10^6, which is option 3. To determine this, we need to understand the conventions of scientific notation.
Scientific notation is a way of expressing very large or very small numbers in a concise form. It consists of two parts: a coefficient and a power of 10. The coefficient is a number greater than or equal to 1 but less than 10, and the power of 10 indicates the magnitude of the number.
Option 1, "1.5 + 10^6," is not in scientific notation because the coefficient is not between 1 and 10.
Option 2, "15 × 10^6," is not in scientific notation because the coefficient is greater than 10.
Option 3, "1.5 × 10^6," is in scientific notation because the coefficient, 1.5, is between 1 and 10, and the power of 10, 6, indicates that the number is multiplied by 10 six times.
Option 4, "1.5 × 10^6.1," is not in scientific notation because the power of 10, 6.1, includes a decimal, which is not allowed in the exponent of scientific notation.
Therefore, the correct answer is option 3, "1.5 × 10^6."